Abstract

In this manuscript, we report on coherent polarization beam combination (CPBC) of a four-channel pulsed amplifier array in the picosecond regime by using single frequency dithering technique. By employing a photo-detector with low-pass bandwidth (8.5 MHz at 10 dB gain) to filter the intensity fluctuation and obtain phase errors for feedback, a combined laser pulse with~480 ps pulse width at~60 MHz repetition rate is obtained with an average power of 88 W. By adjusting the optical path differences (OPDs) and controlling the pump power to ensure the synchronizations and alleviate the influence of nonlinear phases among each channel, more than 90% combining efficiency is achieved with excellent beam quality (M2~1.1). Finally, the efficiency loss of the system along with the power scaling process is discussed.

© 2014 Optical Society of America

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  1. C. Jauregui, J. Limpert, A. Tünnermann, “High-power fibre lasers,” Nat. Photonics 7(11), 861–867 (2013).
    [CrossRef]
  2. T. M. Shay, V. Benham, J. T. Baker, B. Ward, A. D. Sanchez, M. A. Culpepper, D. Pilkington, J. Spring, D. J. Nelson, C. A. Lu, “First experimental demonstration of self-synchronous phase locking of an optical array,” Opt. Express 14(25), 12015–12021 (2006).
    [CrossRef] [PubMed]
  3. G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
    [CrossRef]
  4. M. A. Vorontsov, S. L. Lachinova, “Laser beam projection with adaptive array of fiber collimators. I. Basic considerations for analysis,” J. Opt. Soc. Am. A 25(8), 1949–1959 (2008).
    [CrossRef] [PubMed]
  5. P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, S. Guo, “Coherent beam combination of fiber amplifiers using stochastic parallel gradient descent algorithm and its application,” IEEE J. Sel. Top. Quantum Electron. 15(2), 248–256 (2009).
    [CrossRef]
  6. J. Bourderionnet, C. Bellanger, J. Primot, A. Brignon, “Collective coherent phase combining of 64 fibers,” Opt. Express 19(18), 17053–17058 (2011).
    [CrossRef] [PubMed]
  7. C. X. Yu, S. J. Augst, S. M. Redmond, K. C. Goldizen, D. V. Murphy, A. Sanchez, T. Y. Fan, “Coherent combining of a 4 kW, eight-element fiber amplifier array,” Opt. Lett. 36(14), 2686–2688 (2011).
    [CrossRef] [PubMed]
  8. Y. Ma, X. Wang, J. Leng, H. Xiao, X. Dong, J. Zhu, W. Du, P. Zhou, X. Xu, L. Si, Z. Liu, Y. Zhao, “Coherent beam combination of 1.08 kW fiber amplifier array using single frequency dithering technique,” Opt. Lett. 36(6), 951–953 (2011).
    [CrossRef] [PubMed]
  9. X. L. Wang, P. Zhou, Y. X. Ma, J. Y. Leng, X. J. Xu, Z. J. Liu, “Active phasing a nine-element 1.14 kW all-fiber two-tone MOPA array using SPGD algorithm,” Opt. Lett. 36(16), 3121–3123 (2011).
    [CrossRef] [PubMed]
  10. C. J. Corcoran, F. Durville, “Experimental demonstration of a phase—locked laser array using a self-Fourier cavity,” Appl. Phys. Lett. 86, 201118 (2005).
  11. J. Lhermite, A. Desfarges-Berthelemot, V. Kermene, A. Barthelemy, “Passive phase locking of an array of four fiber amplifiers by an all-optical feedback loop,” Opt. Lett. 32(13), 1842–1844 (2007).
    [CrossRef] [PubMed]
  12. P. C. Shardlow, M. J. Damzen, “Phase conjugate self-organized coherent beam combination: a passive technique for laser power scaling,” Opt. Lett. 35(7), 1082–1084 (2010).
    [CrossRef] [PubMed]
  13. M. Zhang, E. J. R. Kelleher, A. S. Pozharov, E. D. Obraztsova, S. V. Popov, J. R. Taylor, “Passive synchronization of all-fiber lasers through a common saturable absorber,” Opt. Lett. 36(20), 3984–3986 (2011).
    [CrossRef] [PubMed]
  14. L. Lombard, A. Azarian, K. Cadoret, P. Bourdon, D. Goular, G. Canat, V. Jolivet, Y. Jaouën, O. Vasseur, “Coherent beam combination of narrow-linewidth 1.5 μm fiber amplifiers in a long-pulse regime,” Opt. Lett. 36(4), 523–525 (2011).
    [CrossRef] [PubMed]
  15. S. Palese, E. Cheung, G. Goodno, C. C. Shih, F. Di Teodoro, T. McComb, M. Weber, “Coherent combining of pulsed fiber amplifiers in the nonlinear chirp regime with intra-pulse phase control,” Opt. Express 20(7), 7422–7435 (2012).
    [CrossRef] [PubMed]
  16. Y. Zaouter, L. Daniault, M. Hanna, D. N. Papadopoulos, F. Morin, C. Hönninger, F. Druon, E. Mottay, P. Georges, “Passive coherent combination of two ultrafast rod type fiber chirped pulse amplifiers,” Opt. Lett. 37(9), 1460–1462 (2012).
    [CrossRef] [PubMed]
  17. H. Liu, B. He, J. Zhou, J. Dong, Y. Wei, Q. Lou, “Coherent beam combination of two nanosecond fiber amplifiers by an all-optical feedback loop,” Opt. Lett. 37(18), 3885–3887 (2012).
    [CrossRef] [PubMed]
  18. A. Brignon edited, Coherent Laser Beam Combining (Wiley, 2013).
  19. R. Su, P. Zhou, X. Wang, H. Zhang, X. Xu, “Active coherent beam combining of a five-element, 800 W nanosecond fiber amplifier array,” Opt. Lett. 37(19), 3978–3980 (2012).
    [CrossRef] [PubMed]
  20. R. Uberna, A. Bratcher, B. G. Tiemann, “Coherent polarization beam combination,” IEEE J. Quantum Electron. 46, 1191–1196 (2010).
    [CrossRef] [PubMed]
  21. S. M. Redmond, D. J. Ripin, C. X. Yu, S. J. Augst, T. Y. Fan, P. A. Thielen, J. E. Rothenberg, G. D. Goodno, “Diffractive coherent combining of a 2.5 kW fiber laser array into a 1.9 kW Gaussian beam,” Opt. Lett. 37(14), 2832–2834 (2012).
    [CrossRef] [PubMed]
  22. R. Uberna, A. Bratcher, T. G. Alley, A. D. Sanchez, A. S. Flores, B. Pulford, “Coherent combination of high power fiber amplifiers in a two-dimensional re-imaging waveguide,” Opt. Express 18(13), 13547–13553 (2010).
    [CrossRef] [PubMed]
  23. P. F. Ma, P. Zhou, H. Xiao, Y. X. Ma, R. T. Su, Z. J. Liu, “Generation of a 481 W single frequency and linearly polarized beam by coherent polarization locking,” IEEE Photonics Technol. Lett. 25(19), 1936–1938 (2013).
    [CrossRef]
  24. P. F. Ma, P. Zhou, R. T. Su, Y. X. Ma, Z. J. Liu, “Coherent polarization beam combining of eight fiber lasers using single-frequency dithering technique,” Laser Phys. Lett. 9(6), 456–458 (2012).
    [CrossRef]
  25. L. A. Siiman, W. Z. Chang, T. Zhou, A. Galvanauskas, “Coherent femtosecond pulse combining of multiple parallel chirped pulse fiber amplifiers,” Opt. Express 20(16), 18097–18116 (2012).
    [CrossRef] [PubMed]
  26. A. Klenke, S. Breitkopf, M. Kienel, T. Gottschall, T. Eidam, S. Hädrich, J. Rothhardt, J. Limpert, A. Tünnermann, “530 W, 1.3 mJ, four-channel coherently combined femtosecond fiber chirped-pulse amplification system,” Opt. Lett. 38(13), 2283–2285 (2013).
    [CrossRef] [PubMed]
  27. P. S. Teh, R. J. Lewis, S. U. Alam, D. J. Richardson, “200 W diffraction limited, single-polarization, all-fiber picosecond MOPA,” Opt. Express 21(22), 25883–25889 (2013).
    [CrossRef] [PubMed]
  28. D. C. Jones, C. D. Stacey, A. M. Scott, “Phase stabilization of a large-mode-area ytterbium-doped fiber amplifier,” Opt. Lett. 32(5), 466–468 (2007).
    [CrossRef] [PubMed]
  29. A. Klenke, E. Seise, J. Limpert, A. Tünnermann, “Basic considerations on coherent combining of ultrashort laser pulses,” Opt. Express 19(25), 25379–25387 (2011).
    [CrossRef] [PubMed]
  30. R. Su, P. Zhou, X. Wang, H. Zhang, X. Xu, “Impact of temporal and spectral aberrations on coherent beam combination of nanosecond fiber lasers,” Appl. Opt. 52(10), 2187–2193 (2013).
    [CrossRef] [PubMed]
  31. R. Tao, X. Wang, P. Zhou, L. Si, Z. Liu, “Widely tunable mode-locked all-fiberized Yb-doped fiber laser with near-transform-limited spectrum linewidth,” Appl. Phys. B, doi: (2013).
    [CrossRef]
  32. Y. Ma, P. Zhou, X. Wang, H. Ma, X. Xu, L. Si, Z. Liu, Y. Zhao, “Coherent beam combination with single frequency dithering technique,” Opt. Lett. 35(9), 1308–1310 (2010).
    [CrossRef] [PubMed]
  33. M. Leigh, W. Shi, J. Zong, J. Wang, S. Jiang, N. Peyghambarian, “Compact, single-frequency all-fiber Q-switched laser at 1 microm,” Opt. Lett. 32(8), 897–899 (2007).
    [CrossRef] [PubMed]
  34. G. D. Goodno, C. C. Shih, J. E. Rothenberg, “Perturbative analysis of coherent combining efficiency with mismatched lasers,” Opt. Express 18(24), 25403–25414 (2010).
    [CrossRef] [PubMed]
  35. P. Ma, P. Zhou, Y. Ma, R. Su, Z. Liu, “Analysis of the effects of aberrations on coherent polarization beam combining of fiber laser beams,” Appl. Opt. 51(16), 3546–3551 (2012).
    [CrossRef] [PubMed]
  36. V. Jolivet, P. Bourdon, B. Bennaï, L. Lombard, D. Goular, E. Pourtal, G. Canat, Y. Jaouën, B. Moreau, O. Vasseur, “Beam shaping of single-mode and multimode fiber amplifier arrays for propagation through atmospheric turbulence,” IEEE J. Sel. Top. Quantum Electron. 15(2), 257–268 (2009).
    [CrossRef]

2013 (5)

2012 (8)

P. Ma, P. Zhou, Y. Ma, R. Su, Z. Liu, “Analysis of the effects of aberrations on coherent polarization beam combining of fiber laser beams,” Appl. Opt. 51(16), 3546–3551 (2012).
[CrossRef] [PubMed]

P. F. Ma, P. Zhou, R. T. Su, Y. X. Ma, Z. J. Liu, “Coherent polarization beam combining of eight fiber lasers using single-frequency dithering technique,” Laser Phys. Lett. 9(6), 456–458 (2012).
[CrossRef]

L. A. Siiman, W. Z. Chang, T. Zhou, A. Galvanauskas, “Coherent femtosecond pulse combining of multiple parallel chirped pulse fiber amplifiers,” Opt. Express 20(16), 18097–18116 (2012).
[CrossRef] [PubMed]

S. M. Redmond, D. J. Ripin, C. X. Yu, S. J. Augst, T. Y. Fan, P. A. Thielen, J. E. Rothenberg, G. D. Goodno, “Diffractive coherent combining of a 2.5 kW fiber laser array into a 1.9 kW Gaussian beam,” Opt. Lett. 37(14), 2832–2834 (2012).
[CrossRef] [PubMed]

S. Palese, E. Cheung, G. Goodno, C. C. Shih, F. Di Teodoro, T. McComb, M. Weber, “Coherent combining of pulsed fiber amplifiers in the nonlinear chirp regime with intra-pulse phase control,” Opt. Express 20(7), 7422–7435 (2012).
[CrossRef] [PubMed]

Y. Zaouter, L. Daniault, M. Hanna, D. N. Papadopoulos, F. Morin, C. Hönninger, F. Druon, E. Mottay, P. Georges, “Passive coherent combination of two ultrafast rod type fiber chirped pulse amplifiers,” Opt. Lett. 37(9), 1460–1462 (2012).
[CrossRef] [PubMed]

H. Liu, B. He, J. Zhou, J. Dong, Y. Wei, Q. Lou, “Coherent beam combination of two nanosecond fiber amplifiers by an all-optical feedback loop,” Opt. Lett. 37(18), 3885–3887 (2012).
[CrossRef] [PubMed]

R. Su, P. Zhou, X. Wang, H. Zhang, X. Xu, “Active coherent beam combining of a five-element, 800 W nanosecond fiber amplifier array,” Opt. Lett. 37(19), 3978–3980 (2012).
[CrossRef] [PubMed]

2011 (7)

M. Zhang, E. J. R. Kelleher, A. S. Pozharov, E. D. Obraztsova, S. V. Popov, J. R. Taylor, “Passive synchronization of all-fiber lasers through a common saturable absorber,” Opt. Lett. 36(20), 3984–3986 (2011).
[CrossRef] [PubMed]

L. Lombard, A. Azarian, K. Cadoret, P. Bourdon, D. Goular, G. Canat, V. Jolivet, Y. Jaouën, O. Vasseur, “Coherent beam combination of narrow-linewidth 1.5 μm fiber amplifiers in a long-pulse regime,” Opt. Lett. 36(4), 523–525 (2011).
[CrossRef] [PubMed]

J. Bourderionnet, C. Bellanger, J. Primot, A. Brignon, “Collective coherent phase combining of 64 fibers,” Opt. Express 19(18), 17053–17058 (2011).
[CrossRef] [PubMed]

C. X. Yu, S. J. Augst, S. M. Redmond, K. C. Goldizen, D. V. Murphy, A. Sanchez, T. Y. Fan, “Coherent combining of a 4 kW, eight-element fiber amplifier array,” Opt. Lett. 36(14), 2686–2688 (2011).
[CrossRef] [PubMed]

Y. Ma, X. Wang, J. Leng, H. Xiao, X. Dong, J. Zhu, W. Du, P. Zhou, X. Xu, L. Si, Z. Liu, Y. Zhao, “Coherent beam combination of 1.08 kW fiber amplifier array using single frequency dithering technique,” Opt. Lett. 36(6), 951–953 (2011).
[CrossRef] [PubMed]

X. L. Wang, P. Zhou, Y. X. Ma, J. Y. Leng, X. J. Xu, Z. J. Liu, “Active phasing a nine-element 1.14 kW all-fiber two-tone MOPA array using SPGD algorithm,” Opt. Lett. 36(16), 3121–3123 (2011).
[CrossRef] [PubMed]

A. Klenke, E. Seise, J. Limpert, A. Tünnermann, “Basic considerations on coherent combining of ultrashort laser pulses,” Opt. Express 19(25), 25379–25387 (2011).
[CrossRef] [PubMed]

2010 (5)

2009 (2)

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, S. Guo, “Coherent beam combination of fiber amplifiers using stochastic parallel gradient descent algorithm and its application,” IEEE J. Sel. Top. Quantum Electron. 15(2), 248–256 (2009).
[CrossRef]

V. Jolivet, P. Bourdon, B. Bennaï, L. Lombard, D. Goular, E. Pourtal, G. Canat, Y. Jaouën, B. Moreau, O. Vasseur, “Beam shaping of single-mode and multimode fiber amplifier arrays for propagation through atmospheric turbulence,” IEEE J. Sel. Top. Quantum Electron. 15(2), 257–268 (2009).
[CrossRef]

2008 (1)

2007 (4)

2006 (1)

2005 (1)

C. J. Corcoran, F. Durville, “Experimental demonstration of a phase—locked laser array using a self-Fourier cavity,” Appl. Phys. Lett. 86, 201118 (2005).

Alam, S. U.

Alley, T. G.

Anderegg, J.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Asman, C. P.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Augst, S. J.

Azarian, A.

Baker, J. T.

Barthelemy, A.

Bellanger, C.

Benham, V.

Bennaï, B.

V. Jolivet, P. Bourdon, B. Bennaï, L. Lombard, D. Goular, E. Pourtal, G. Canat, Y. Jaouën, B. Moreau, O. Vasseur, “Beam shaping of single-mode and multimode fiber amplifier arrays for propagation through atmospheric turbulence,” IEEE J. Sel. Top. Quantum Electron. 15(2), 257–268 (2009).
[CrossRef]

Bourderionnet, J.

Bourdon, P.

L. Lombard, A. Azarian, K. Cadoret, P. Bourdon, D. Goular, G. Canat, V. Jolivet, Y. Jaouën, O. Vasseur, “Coherent beam combination of narrow-linewidth 1.5 μm fiber amplifiers in a long-pulse regime,” Opt. Lett. 36(4), 523–525 (2011).
[CrossRef] [PubMed]

V. Jolivet, P. Bourdon, B. Bennaï, L. Lombard, D. Goular, E. Pourtal, G. Canat, Y. Jaouën, B. Moreau, O. Vasseur, “Beam shaping of single-mode and multimode fiber amplifier arrays for propagation through atmospheric turbulence,” IEEE J. Sel. Top. Quantum Electron. 15(2), 257–268 (2009).
[CrossRef]

Bratcher, A.

Breitkopf, S.

Brignon, A.

Brosnan, S.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Cadoret, K.

Canat, G.

L. Lombard, A. Azarian, K. Cadoret, P. Bourdon, D. Goular, G. Canat, V. Jolivet, Y. Jaouën, O. Vasseur, “Coherent beam combination of narrow-linewidth 1.5 μm fiber amplifiers in a long-pulse regime,” Opt. Lett. 36(4), 523–525 (2011).
[CrossRef] [PubMed]

V. Jolivet, P. Bourdon, B. Bennaï, L. Lombard, D. Goular, E. Pourtal, G. Canat, Y. Jaouën, B. Moreau, O. Vasseur, “Beam shaping of single-mode and multimode fiber amplifier arrays for propagation through atmospheric turbulence,” IEEE J. Sel. Top. Quantum Electron. 15(2), 257–268 (2009).
[CrossRef]

Chang, W. Z.

Cheung, E.

Cheung, E. C.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Corcoran, C. J.

C. J. Corcoran, F. Durville, “Experimental demonstration of a phase—locked laser array using a self-Fourier cavity,” Appl. Phys. Lett. 86, 201118 (2005).

Culpepper, M. A.

Damzen, M. J.

Daniault, L.

Desfarges-Berthelemot, A.

Di Teodoro, F.

Dong, J.

Dong, X.

Druon, F.

Du, W.

Durville, F.

C. J. Corcoran, F. Durville, “Experimental demonstration of a phase—locked laser array using a self-Fourier cavity,” Appl. Phys. Lett. 86, 201118 (2005).

Eidam, T.

Fan, T. Y.

Flores, A. S.

Galvanauskas, A.

Georges, P.

Goldizen, K. C.

Goodno, G.

Goodno, G. D.

S. M. Redmond, D. J. Ripin, C. X. Yu, S. J. Augst, T. Y. Fan, P. A. Thielen, J. E. Rothenberg, G. D. Goodno, “Diffractive coherent combining of a 2.5 kW fiber laser array into a 1.9 kW Gaussian beam,” Opt. Lett. 37(14), 2832–2834 (2012).
[CrossRef] [PubMed]

G. D. Goodno, C. C. Shih, J. E. Rothenberg, “Perturbative analysis of coherent combining efficiency with mismatched lasers,” Opt. Express 18(24), 25403–25414 (2010).
[CrossRef] [PubMed]

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Gottschall, T.

Goular, D.

L. Lombard, A. Azarian, K. Cadoret, P. Bourdon, D. Goular, G. Canat, V. Jolivet, Y. Jaouën, O. Vasseur, “Coherent beam combination of narrow-linewidth 1.5 μm fiber amplifiers in a long-pulse regime,” Opt. Lett. 36(4), 523–525 (2011).
[CrossRef] [PubMed]

V. Jolivet, P. Bourdon, B. Bennaï, L. Lombard, D. Goular, E. Pourtal, G. Canat, Y. Jaouën, B. Moreau, O. Vasseur, “Beam shaping of single-mode and multimode fiber amplifier arrays for propagation through atmospheric turbulence,” IEEE J. Sel. Top. Quantum Electron. 15(2), 257–268 (2009).
[CrossRef]

Guo, S.

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, S. Guo, “Coherent beam combination of fiber amplifiers using stochastic parallel gradient descent algorithm and its application,” IEEE J. Sel. Top. Quantum Electron. 15(2), 248–256 (2009).
[CrossRef]

Hädrich, S.

Hammons, D.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Hanna, M.

He, B.

Hönninger, C.

Injeyan, H.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Jaouën, Y.

L. Lombard, A. Azarian, K. Cadoret, P. Bourdon, D. Goular, G. Canat, V. Jolivet, Y. Jaouën, O. Vasseur, “Coherent beam combination of narrow-linewidth 1.5 μm fiber amplifiers in a long-pulse regime,” Opt. Lett. 36(4), 523–525 (2011).
[CrossRef] [PubMed]

V. Jolivet, P. Bourdon, B. Bennaï, L. Lombard, D. Goular, E. Pourtal, G. Canat, Y. Jaouën, B. Moreau, O. Vasseur, “Beam shaping of single-mode and multimode fiber amplifier arrays for propagation through atmospheric turbulence,” IEEE J. Sel. Top. Quantum Electron. 15(2), 257–268 (2009).
[CrossRef]

Jauregui, C.

C. Jauregui, J. Limpert, A. Tünnermann, “High-power fibre lasers,” Nat. Photonics 7(11), 861–867 (2013).
[CrossRef]

Jiang, S.

Jolivet, V.

L. Lombard, A. Azarian, K. Cadoret, P. Bourdon, D. Goular, G. Canat, V. Jolivet, Y. Jaouën, O. Vasseur, “Coherent beam combination of narrow-linewidth 1.5 μm fiber amplifiers in a long-pulse regime,” Opt. Lett. 36(4), 523–525 (2011).
[CrossRef] [PubMed]

V. Jolivet, P. Bourdon, B. Bennaï, L. Lombard, D. Goular, E. Pourtal, G. Canat, Y. Jaouën, B. Moreau, O. Vasseur, “Beam shaping of single-mode and multimode fiber amplifier arrays for propagation through atmospheric turbulence,” IEEE J. Sel. Top. Quantum Electron. 15(2), 257–268 (2009).
[CrossRef]

Jones, D. C.

Kelleher, E. J. R.

Kermene, V.

Kienel, M.

Klenke, A.

Komine, H.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Lachinova, S. L.

Leigh, M.

Leng, J.

Leng, J. Y.

Lewis, R. J.

Lhermite, J.

Limpert, J.

Liu, H.

Liu, Z.

Liu, Z. J.

P. F. Ma, P. Zhou, H. Xiao, Y. X. Ma, R. T. Su, Z. J. Liu, “Generation of a 481 W single frequency and linearly polarized beam by coherent polarization locking,” IEEE Photonics Technol. Lett. 25(19), 1936–1938 (2013).
[CrossRef]

P. F. Ma, P. Zhou, R. T. Su, Y. X. Ma, Z. J. Liu, “Coherent polarization beam combining of eight fiber lasers using single-frequency dithering technique,” Laser Phys. Lett. 9(6), 456–458 (2012).
[CrossRef]

X. L. Wang, P. Zhou, Y. X. Ma, J. Y. Leng, X. J. Xu, Z. J. Liu, “Active phasing a nine-element 1.14 kW all-fiber two-tone MOPA array using SPGD algorithm,” Opt. Lett. 36(16), 3121–3123 (2011).
[CrossRef] [PubMed]

Lombard, L.

L. Lombard, A. Azarian, K. Cadoret, P. Bourdon, D. Goular, G. Canat, V. Jolivet, Y. Jaouën, O. Vasseur, “Coherent beam combination of narrow-linewidth 1.5 μm fiber amplifiers in a long-pulse regime,” Opt. Lett. 36(4), 523–525 (2011).
[CrossRef] [PubMed]

V. Jolivet, P. Bourdon, B. Bennaï, L. Lombard, D. Goular, E. Pourtal, G. Canat, Y. Jaouën, B. Moreau, O. Vasseur, “Beam shaping of single-mode and multimode fiber amplifier arrays for propagation through atmospheric turbulence,” IEEE J. Sel. Top. Quantum Electron. 15(2), 257–268 (2009).
[CrossRef]

Long, W. H.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Lou, Q.

Lu, C. A.

Ma, H.

Y. Ma, P. Zhou, X. Wang, H. Ma, X. Xu, L. Si, Z. Liu, Y. Zhao, “Coherent beam combination with single frequency dithering technique,” Opt. Lett. 35(9), 1308–1310 (2010).
[CrossRef] [PubMed]

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, S. Guo, “Coherent beam combination of fiber amplifiers using stochastic parallel gradient descent algorithm and its application,” IEEE J. Sel. Top. Quantum Electron. 15(2), 248–256 (2009).
[CrossRef]

Ma, P.

Ma, P. F.

P. F. Ma, P. Zhou, H. Xiao, Y. X. Ma, R. T. Su, Z. J. Liu, “Generation of a 481 W single frequency and linearly polarized beam by coherent polarization locking,” IEEE Photonics Technol. Lett. 25(19), 1936–1938 (2013).
[CrossRef]

P. F. Ma, P. Zhou, R. T. Su, Y. X. Ma, Z. J. Liu, “Coherent polarization beam combining of eight fiber lasers using single-frequency dithering technique,” Laser Phys. Lett. 9(6), 456–458 (2012).
[CrossRef]

Ma, Y.

Ma, Y. X.

P. F. Ma, P. Zhou, H. Xiao, Y. X. Ma, R. T. Su, Z. J. Liu, “Generation of a 481 W single frequency and linearly polarized beam by coherent polarization locking,” IEEE Photonics Technol. Lett. 25(19), 1936–1938 (2013).
[CrossRef]

P. F. Ma, P. Zhou, R. T. Su, Y. X. Ma, Z. J. Liu, “Coherent polarization beam combining of eight fiber lasers using single-frequency dithering technique,” Laser Phys. Lett. 9(6), 456–458 (2012).
[CrossRef]

X. L. Wang, P. Zhou, Y. X. Ma, J. Y. Leng, X. J. Xu, Z. J. Liu, “Active phasing a nine-element 1.14 kW all-fiber two-tone MOPA array using SPGD algorithm,” Opt. Lett. 36(16), 3121–3123 (2011).
[CrossRef] [PubMed]

McClellan, M.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

McComb, T.

McNaught, S. J.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Moreau, B.

V. Jolivet, P. Bourdon, B. Bennaï, L. Lombard, D. Goular, E. Pourtal, G. Canat, Y. Jaouën, B. Moreau, O. Vasseur, “Beam shaping of single-mode and multimode fiber amplifier arrays for propagation through atmospheric turbulence,” IEEE J. Sel. Top. Quantum Electron. 15(2), 257–268 (2009).
[CrossRef]

Morin, F.

Mottay, E.

Murphy, D. V.

Nelson, D. J.

Obraztsova, E. D.

Palese, S.

Papadopoulos, D. N.

Peyghambarian, N.

Pilkington, D.

Popov, S. V.

Pourtal, E.

V. Jolivet, P. Bourdon, B. Bennaï, L. Lombard, D. Goular, E. Pourtal, G. Canat, Y. Jaouën, B. Moreau, O. Vasseur, “Beam shaping of single-mode and multimode fiber amplifier arrays for propagation through atmospheric turbulence,” IEEE J. Sel. Top. Quantum Electron. 15(2), 257–268 (2009).
[CrossRef]

Pozharov, A. S.

Primot, J.

Pulford, B.

Redmond, S.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Redmond, S. M.

Richardson, D. J.

Ripin, D. J.

Rothenberg, J. E.

Rothhardt, J.

Sanchez, A.

Sanchez, A. D.

Scott, A. M.

Seise, E.

Shardlow, P. C.

Shay, T. M.

Shi, W.

Shih, C. C.

Si, L.

Siiman, L. A.

Simpson, R.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Sollee, J.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Spring, J.

Stacey, C. D.

Su, R.

Su, R. T.

P. F. Ma, P. Zhou, H. Xiao, Y. X. Ma, R. T. Su, Z. J. Liu, “Generation of a 481 W single frequency and linearly polarized beam by coherent polarization locking,” IEEE Photonics Technol. Lett. 25(19), 1936–1938 (2013).
[CrossRef]

P. F. Ma, P. Zhou, R. T. Su, Y. X. Ma, Z. J. Liu, “Coherent polarization beam combining of eight fiber lasers using single-frequency dithering technique,” Laser Phys. Lett. 9(6), 456–458 (2012).
[CrossRef]

Tao, R.

R. Tao, X. Wang, P. Zhou, L. Si, Z. Liu, “Widely tunable mode-locked all-fiberized Yb-doped fiber laser with near-transform-limited spectrum linewidth,” Appl. Phys. B, doi: (2013).
[CrossRef]

Taylor, J. R.

Teh, P. S.

Thielen, P. A.

Tiemann, B. G.

R. Uberna, A. Bratcher, B. G. Tiemann, “Coherent polarization beam combination,” IEEE J. Quantum Electron. 46, 1191–1196 (2010).
[CrossRef] [PubMed]

Tünnermann, A.

Uberna, R.

Vasseur, O.

L. Lombard, A. Azarian, K. Cadoret, P. Bourdon, D. Goular, G. Canat, V. Jolivet, Y. Jaouën, O. Vasseur, “Coherent beam combination of narrow-linewidth 1.5 μm fiber amplifiers in a long-pulse regime,” Opt. Lett. 36(4), 523–525 (2011).
[CrossRef] [PubMed]

V. Jolivet, P. Bourdon, B. Bennaï, L. Lombard, D. Goular, E. Pourtal, G. Canat, Y. Jaouën, B. Moreau, O. Vasseur, “Beam shaping of single-mode and multimode fiber amplifier arrays for propagation through atmospheric turbulence,” IEEE J. Sel. Top. Quantum Electron. 15(2), 257–268 (2009).
[CrossRef]

Vorontsov, M. A.

Wang, J.

Wang, X.

Wang, X. L.

Ward, B.

Weber, M.

S. Palese, E. Cheung, G. Goodno, C. C. Shih, F. Di Teodoro, T. McComb, M. Weber, “Coherent combining of pulsed fiber amplifiers in the nonlinear chirp regime with intra-pulse phase control,” Opt. Express 20(7), 7422–7435 (2012).
[CrossRef] [PubMed]

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Wei, Y.

Weiss, S. B.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Wickham, M.

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

Xiao, H.

P. F. Ma, P. Zhou, H. Xiao, Y. X. Ma, R. T. Su, Z. J. Liu, “Generation of a 481 W single frequency and linearly polarized beam by coherent polarization locking,” IEEE Photonics Technol. Lett. 25(19), 1936–1938 (2013).
[CrossRef]

Y. Ma, X. Wang, J. Leng, H. Xiao, X. Dong, J. Zhu, W. Du, P. Zhou, X. Xu, L. Si, Z. Liu, Y. Zhao, “Coherent beam combination of 1.08 kW fiber amplifier array using single frequency dithering technique,” Opt. Lett. 36(6), 951–953 (2011).
[CrossRef] [PubMed]

Xu, X.

Xu, X. J.

Yu, C. X.

Zaouter, Y.

Zhang, H.

Zhang, M.

Zhao, Y.

Zhou, J.

Zhou, P.

P. F. Ma, P. Zhou, H. Xiao, Y. X. Ma, R. T. Su, Z. J. Liu, “Generation of a 481 W single frequency and linearly polarized beam by coherent polarization locking,” IEEE Photonics Technol. Lett. 25(19), 1936–1938 (2013).
[CrossRef]

R. Su, P. Zhou, X. Wang, H. Zhang, X. Xu, “Impact of temporal and spectral aberrations on coherent beam combination of nanosecond fiber lasers,” Appl. Opt. 52(10), 2187–2193 (2013).
[CrossRef] [PubMed]

P. Ma, P. Zhou, Y. Ma, R. Su, Z. Liu, “Analysis of the effects of aberrations on coherent polarization beam combining of fiber laser beams,” Appl. Opt. 51(16), 3546–3551 (2012).
[CrossRef] [PubMed]

P. F. Ma, P. Zhou, R. T. Su, Y. X. Ma, Z. J. Liu, “Coherent polarization beam combining of eight fiber lasers using single-frequency dithering technique,” Laser Phys. Lett. 9(6), 456–458 (2012).
[CrossRef]

R. Su, P. Zhou, X. Wang, H. Zhang, X. Xu, “Active coherent beam combining of a five-element, 800 W nanosecond fiber amplifier array,” Opt. Lett. 37(19), 3978–3980 (2012).
[CrossRef] [PubMed]

Y. Ma, X. Wang, J. Leng, H. Xiao, X. Dong, J. Zhu, W. Du, P. Zhou, X. Xu, L. Si, Z. Liu, Y. Zhao, “Coherent beam combination of 1.08 kW fiber amplifier array using single frequency dithering technique,” Opt. Lett. 36(6), 951–953 (2011).
[CrossRef] [PubMed]

X. L. Wang, P. Zhou, Y. X. Ma, J. Y. Leng, X. J. Xu, Z. J. Liu, “Active phasing a nine-element 1.14 kW all-fiber two-tone MOPA array using SPGD algorithm,” Opt. Lett. 36(16), 3121–3123 (2011).
[CrossRef] [PubMed]

Y. Ma, P. Zhou, X. Wang, H. Ma, X. Xu, L. Si, Z. Liu, Y. Zhao, “Coherent beam combination with single frequency dithering technique,” Opt. Lett. 35(9), 1308–1310 (2010).
[CrossRef] [PubMed]

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, S. Guo, “Coherent beam combination of fiber amplifiers using stochastic parallel gradient descent algorithm and its application,” IEEE J. Sel. Top. Quantum Electron. 15(2), 248–256 (2009).
[CrossRef]

R. Tao, X. Wang, P. Zhou, L. Si, Z. Liu, “Widely tunable mode-locked all-fiberized Yb-doped fiber laser with near-transform-limited spectrum linewidth,” Appl. Phys. B, doi: (2013).
[CrossRef]

Zhou, T.

Zhu, J.

Zong, J.

Appl. Opt. (2)

Appl. Phys. Lett. (1)

C. J. Corcoran, F. Durville, “Experimental demonstration of a phase—locked laser array using a self-Fourier cavity,” Appl. Phys. Lett. 86, 201118 (2005).

IEEE J. Quantum Electron. (1)

R. Uberna, A. Bratcher, B. G. Tiemann, “Coherent polarization beam combination,” IEEE J. Quantum Electron. 46, 1191–1196 (2010).
[CrossRef] [PubMed]

IEEE J. Sel. Top. Quantum Electron. (3)

G. D. Goodno, C. P. Asman, J. Anderegg, S. Brosnan, E. C. Cheung, D. Hammons, H. Injeyan, H. Komine, W. H. Long, M. McClellan, S. J. McNaught, S. Redmond, R. Simpson, J. Sollee, M. Weber, S. B. Weiss, M. Wickham, “Brightness-scaling potential of actively phase-locked solidstate laser arrays,” IEEE J. Sel. Top. Quantum Electron. 13(3), 460–472 (2007).
[CrossRef]

P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, S. Guo, “Coherent beam combination of fiber amplifiers using stochastic parallel gradient descent algorithm and its application,” IEEE J. Sel. Top. Quantum Electron. 15(2), 248–256 (2009).
[CrossRef]

V. Jolivet, P. Bourdon, B. Bennaï, L. Lombard, D. Goular, E. Pourtal, G. Canat, Y. Jaouën, B. Moreau, O. Vasseur, “Beam shaping of single-mode and multimode fiber amplifier arrays for propagation through atmospheric turbulence,” IEEE J. Sel. Top. Quantum Electron. 15(2), 257–268 (2009).
[CrossRef]

IEEE Photonics Technol. Lett. (1)

P. F. Ma, P. Zhou, H. Xiao, Y. X. Ma, R. T. Su, Z. J. Liu, “Generation of a 481 W single frequency and linearly polarized beam by coherent polarization locking,” IEEE Photonics Technol. Lett. 25(19), 1936–1938 (2013).
[CrossRef]

J. Opt. Soc. Am. A (1)

Laser Phys. Lett. (1)

P. F. Ma, P. Zhou, R. T. Su, Y. X. Ma, Z. J. Liu, “Coherent polarization beam combining of eight fiber lasers using single-frequency dithering technique,” Laser Phys. Lett. 9(6), 456–458 (2012).
[CrossRef]

Nat. Photonics (1)

C. Jauregui, J. Limpert, A. Tünnermann, “High-power fibre lasers,” Nat. Photonics 7(11), 861–867 (2013).
[CrossRef]

Opt. Express (8)

T. M. Shay, V. Benham, J. T. Baker, B. Ward, A. D. Sanchez, M. A. Culpepper, D. Pilkington, J. Spring, D. J. Nelson, C. A. Lu, “First experimental demonstration of self-synchronous phase locking of an optical array,” Opt. Express 14(25), 12015–12021 (2006).
[CrossRef] [PubMed]

J. Bourderionnet, C. Bellanger, J. Primot, A. Brignon, “Collective coherent phase combining of 64 fibers,” Opt. Express 19(18), 17053–17058 (2011).
[CrossRef] [PubMed]

S. Palese, E. Cheung, G. Goodno, C. C. Shih, F. Di Teodoro, T. McComb, M. Weber, “Coherent combining of pulsed fiber amplifiers in the nonlinear chirp regime with intra-pulse phase control,” Opt. Express 20(7), 7422–7435 (2012).
[CrossRef] [PubMed]

L. A. Siiman, W. Z. Chang, T. Zhou, A. Galvanauskas, “Coherent femtosecond pulse combining of multiple parallel chirped pulse fiber amplifiers,” Opt. Express 20(16), 18097–18116 (2012).
[CrossRef] [PubMed]

R. Uberna, A. Bratcher, T. G. Alley, A. D. Sanchez, A. S. Flores, B. Pulford, “Coherent combination of high power fiber amplifiers in a two-dimensional re-imaging waveguide,” Opt. Express 18(13), 13547–13553 (2010).
[CrossRef] [PubMed]

P. S. Teh, R. J. Lewis, S. U. Alam, D. J. Richardson, “200 W diffraction limited, single-polarization, all-fiber picosecond MOPA,” Opt. Express 21(22), 25883–25889 (2013).
[CrossRef] [PubMed]

A. Klenke, E. Seise, J. Limpert, A. Tünnermann, “Basic considerations on coherent combining of ultrashort laser pulses,” Opt. Express 19(25), 25379–25387 (2011).
[CrossRef] [PubMed]

G. D. Goodno, C. C. Shih, J. E. Rothenberg, “Perturbative analysis of coherent combining efficiency with mismatched lasers,” Opt. Express 18(24), 25403–25414 (2010).
[CrossRef] [PubMed]

Opt. Lett. (15)

Y. Ma, P. Zhou, X. Wang, H. Ma, X. Xu, L. Si, Z. Liu, Y. Zhao, “Coherent beam combination with single frequency dithering technique,” Opt. Lett. 35(9), 1308–1310 (2010).
[CrossRef] [PubMed]

M. Leigh, W. Shi, J. Zong, J. Wang, S. Jiang, N. Peyghambarian, “Compact, single-frequency all-fiber Q-switched laser at 1 microm,” Opt. Lett. 32(8), 897–899 (2007).
[CrossRef] [PubMed]

D. C. Jones, C. D. Stacey, A. M. Scott, “Phase stabilization of a large-mode-area ytterbium-doped fiber amplifier,” Opt. Lett. 32(5), 466–468 (2007).
[CrossRef] [PubMed]

R. Su, P. Zhou, X. Wang, H. Zhang, X. Xu, “Active coherent beam combining of a five-element, 800 W nanosecond fiber amplifier array,” Opt. Lett. 37(19), 3978–3980 (2012).
[CrossRef] [PubMed]

S. M. Redmond, D. J. Ripin, C. X. Yu, S. J. Augst, T. Y. Fan, P. A. Thielen, J. E. Rothenberg, G. D. Goodno, “Diffractive coherent combining of a 2.5 kW fiber laser array into a 1.9 kW Gaussian beam,” Opt. Lett. 37(14), 2832–2834 (2012).
[CrossRef] [PubMed]

A. Klenke, S. Breitkopf, M. Kienel, T. Gottschall, T. Eidam, S. Hädrich, J. Rothhardt, J. Limpert, A. Tünnermann, “530 W, 1.3 mJ, four-channel coherently combined femtosecond fiber chirped-pulse amplification system,” Opt. Lett. 38(13), 2283–2285 (2013).
[CrossRef] [PubMed]

Y. Zaouter, L. Daniault, M. Hanna, D. N. Papadopoulos, F. Morin, C. Hönninger, F. Druon, E. Mottay, P. Georges, “Passive coherent combination of two ultrafast rod type fiber chirped pulse amplifiers,” Opt. Lett. 37(9), 1460–1462 (2012).
[CrossRef] [PubMed]

H. Liu, B. He, J. Zhou, J. Dong, Y. Wei, Q. Lou, “Coherent beam combination of two nanosecond fiber amplifiers by an all-optical feedback loop,” Opt. Lett. 37(18), 3885–3887 (2012).
[CrossRef] [PubMed]

J. Lhermite, A. Desfarges-Berthelemot, V. Kermene, A. Barthelemy, “Passive phase locking of an array of four fiber amplifiers by an all-optical feedback loop,” Opt. Lett. 32(13), 1842–1844 (2007).
[CrossRef] [PubMed]

P. C. Shardlow, M. J. Damzen, “Phase conjugate self-organized coherent beam combination: a passive technique for laser power scaling,” Opt. Lett. 35(7), 1082–1084 (2010).
[CrossRef] [PubMed]

M. Zhang, E. J. R. Kelleher, A. S. Pozharov, E. D. Obraztsova, S. V. Popov, J. R. Taylor, “Passive synchronization of all-fiber lasers through a common saturable absorber,” Opt. Lett. 36(20), 3984–3986 (2011).
[CrossRef] [PubMed]

L. Lombard, A. Azarian, K. Cadoret, P. Bourdon, D. Goular, G. Canat, V. Jolivet, Y. Jaouën, O. Vasseur, “Coherent beam combination of narrow-linewidth 1.5 μm fiber amplifiers in a long-pulse regime,” Opt. Lett. 36(4), 523–525 (2011).
[CrossRef] [PubMed]

C. X. Yu, S. J. Augst, S. M. Redmond, K. C. Goldizen, D. V. Murphy, A. Sanchez, T. Y. Fan, “Coherent combining of a 4 kW, eight-element fiber amplifier array,” Opt. Lett. 36(14), 2686–2688 (2011).
[CrossRef] [PubMed]

Y. Ma, X. Wang, J. Leng, H. Xiao, X. Dong, J. Zhu, W. Du, P. Zhou, X. Xu, L. Si, Z. Liu, Y. Zhao, “Coherent beam combination of 1.08 kW fiber amplifier array using single frequency dithering technique,” Opt. Lett. 36(6), 951–953 (2011).
[CrossRef] [PubMed]

X. L. Wang, P. Zhou, Y. X. Ma, J. Y. Leng, X. J. Xu, Z. J. Liu, “Active phasing a nine-element 1.14 kW all-fiber two-tone MOPA array using SPGD algorithm,” Opt. Lett. 36(16), 3121–3123 (2011).
[CrossRef] [PubMed]

Other (2)

A. Brignon edited, Coherent Laser Beam Combining (Wiley, 2013).

R. Tao, X. Wang, P. Zhou, L. Si, Z. Liu, “Widely tunable mode-locked all-fiberized Yb-doped fiber laser with near-transform-limited spectrum linewidth,” Appl. Phys. B, doi: (2013).
[CrossRef]

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Figures (7)

Fig. 1
Fig. 1

Polarization state of the combined beam for (a) without phasing and (b) phase locked.

Fig. 2
Fig. 2

Experimental configuration of the four-channel CPBC system. P-A: pre-amplifier; C1-C4: isolator-embedded collimators; HWP: half wavelength plate; M1-M4: all-reflectance mirrors; M5: high- reflectance mirror (99.9:0.1); M6: 96:4 splitter; PBC1-PBC3: polarization beam combiners; P: linear polarizer; DP1-DP2: dark ports; PD-photo-detector.

Fig. 3
Fig. 3

The time-dependent phasing process along with time and the spectral density of power of phase noise in open loop and closed loop. (a) Time series signals. (b) Spectral density.

Fig. 4
Fig. 4

The combined intensity profiles of the system in the circumstance of without phasing ((a)-(d)), with phasing at maximum state (e), and with phasing at minimum state (f).

Fig. 5
Fig. 5

Measured pulse shapes with (a) a single channel and combined beam in one cycle, and (b) combined beam in 6 cycles.

Fig. 6
Fig. 6

(a) The beam quality (M2 factor) of the coherently combined beam and (b) the spectrum of the coherently polarization combined beam at 12 W power-level and 88 W power-level.

Fig. 7
Fig. 7

The comparison results of combining efficiency between the picosecond-pulsed system and the single frequency CW system.

Equations (3)

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η= P p1 P p1 + P p2 + P DP1 + P DP2
P peak = 2 ln2 π P ave τf
Δη= 1 2 1 2 ( 4 P 1 P 2 cos 2 δ+ ( P 1 P 2 ) 2 + 4 P 3 P 4 cos 2 δ+ ( P 3 P 4 ) 2 ) j=1 4 P j

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