Abstract

We report co-phasing of 49 beams from a multicore fiber based on a spatial light modulator using a simple feedback loop control. A specific fiber of 7x7 Germanium doped cores was fabricated. The power carried by the far field main lobe of the phased array, in the continuous wave regime, amounts to 96% of its theoretical value. Femtoseconde pulses were also phase-locked with the same device configuration.

© 2010 OSA

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. D. Gapontsev, and I. P. G. Photonics, “6kW CW Single Mode Ytterbium Fiber Laser in All-Fiber Format,” in Solid State and Diode Laser Technology Review, Albuquerque (2008).
  2. J. Limpert, F. Roser, S. Klingebiel, T. Schreiber, C. Wirth, T. Peschel, R. Eberhardt, and A. Tiinnermann, “The Rising Power of Fiber Lasers and Amplifiers,” IEEE J. Sel. Top. Quantum Electron. 13(3), 537–545 (2007).
    [CrossRef]
  3. D. Sabourdy, V. Kermène, A. Desfarges-Berthelemot, L. Lefort, A. Barthélémy, C. Mahodaux, and D. Pureur, “Power scaling of fibre lasers with all-fibre interferometric cavity,” Electron. Lett. 38(14), 692–693 (2002).
    [CrossRef]
  4. T. B. Simpson, A. Gavrielides, and P. Peterson, “Extraction characteristics of a dual fiber compound cavity,” Opt. Express 10(20), 1060–1073 (2002).
    [PubMed]
  5. V. Kermene, A. Desfarges-Berthelemot, A. Barthelemy, J. Lhermite, and J. Guillot, “Passive co-phasing of fiber lasers for coherent combining,” Fiber Int. Opt. 27(5), 453–465 (2008).
    [CrossRef]
  6. J. C. Corcoran and F. Durville, “Experimental demonstration of a phase-locked laser array using a self-Fourier cavity,” Appl. Phys. Lett. 86(20), 201118 (2005).
    [CrossRef]
  7. J. Lhermite, A. Desfarges-Berthelemot, V. Kermène, and A. Barthélémy, “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]
  8. H. Bruesselbach, S. Wang, M. Minden, D. C. Jones, and M. Mangir, “Power-scalable phase-compensating fiber-array transceiver for laser communications through the atmosphere,” J. Opt. Soc. Am. B 22(2), 347 (2005).
    [CrossRef]
  9. C. X. Yu, J. E. Kansky, S. E. J. Shaw, D. V. Murphy, and C. Higgs, “Coherent beam combining of large number of PM fibres in 2-D fibre array,” Electron. Lett. 42(18), 1024 (2006).
    [CrossRef]
  10. T. M. Shay, V. Benham, J. T. Baker, B. Ward, A. D. Sanchez, M. A. Culpepper, D. Pilkington, J. Spring, D. J. Nelson, and C. A. Lu, “First experimental demonstration of self-synchronous phase locking of an optical array,” Opt. Express 14(25), 12015–12021 (2006).
    [CrossRef] [PubMed]
  11. C. Bellanger, A. Brignon, J. Colineau, and J. P. Huignard, “Coherent fiber combining by digital holography,” Opt. Lett. 33(24), 2937–2939 (2008).
    [CrossRef] [PubMed]
  12. I. Hartl, A. Marcinkevicius, H. A. McKay, L. Dong and M. E. Fermann, Advanced Solid State Laser 2009, paper TuA6.
  13. I. M. Vellekoop and A. P. Mosk, “Focusing coherent light through opaque strongly scattering media,” Opt. Lett. 32(16), 2309–2311 (2007).
    [CrossRef] [PubMed]
  14. E. C. Cheung, J. G. Ho, G. D. Goodno, R. R. Rice, J. Rothenberg, P. Thielen, M. Weber, and M. Wickham, “Diffractive-optics-based beam combination of a phase-locked fiber laser array,” Opt. Lett. 33(4), 354–356 (2008).
    [CrossRef] [PubMed]
  15. M. A. Vorontsov, G. W. Carhart, and J. C. Ricklin, “Adaptive phase-distortion correction based on parallel gradient-descent optimization,” Opt. Lett. 22(12), 907–909 (1997).
    [CrossRef] [PubMed]
  16. T. Weyrauch, M. A. Vorontsov, T. G. Bifano, J. A. Hammer, M. Cohen, and G. Cauwenberghs, “Microscale Adaptive Optics: Wave-Front Control with a μ-Mirror Array and a VLSI Stochastic Gradient Descent Controller,” Appl. Opt. 40(24), 4243–4253 (2001).
    [CrossRef]

2008 (3)

2007 (3)

2006 (2)

2005 (2)

H. Bruesselbach, S. Wang, M. Minden, D. C. Jones, and M. Mangir, “Power-scalable phase-compensating fiber-array transceiver for laser communications through the atmosphere,” J. Opt. Soc. Am. B 22(2), 347 (2005).
[CrossRef]

J. C. Corcoran and F. Durville, “Experimental demonstration of a phase-locked laser array using a self-Fourier cavity,” Appl. Phys. Lett. 86(20), 201118 (2005).
[CrossRef]

2002 (2)

D. Sabourdy, V. Kermène, A. Desfarges-Berthelemot, L. Lefort, A. Barthélémy, C. Mahodaux, and D. Pureur, “Power scaling of fibre lasers with all-fibre interferometric cavity,” Electron. Lett. 38(14), 692–693 (2002).
[CrossRef]

T. B. Simpson, A. Gavrielides, and P. Peterson, “Extraction characteristics of a dual fiber compound cavity,” Opt. Express 10(20), 1060–1073 (2002).
[PubMed]

2001 (1)

1997 (1)

Baker, J. T.

Barthelemy, A.

V. Kermene, A. Desfarges-Berthelemot, A. Barthelemy, J. Lhermite, and J. Guillot, “Passive co-phasing of fiber lasers for coherent combining,” Fiber Int. Opt. 27(5), 453–465 (2008).
[CrossRef]

Barthélémy, A.

J. Lhermite, A. Desfarges-Berthelemot, V. Kermène, and A. Barthélémy, “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]

D. Sabourdy, V. Kermène, A. Desfarges-Berthelemot, L. Lefort, A. Barthélémy, C. Mahodaux, and D. Pureur, “Power scaling of fibre lasers with all-fibre interferometric cavity,” Electron. Lett. 38(14), 692–693 (2002).
[CrossRef]

Bellanger, C.

Benham, V.

Bifano, T. G.

Brignon, A.

Bruesselbach, H.

Carhart, G. W.

Cauwenberghs, G.

Cheung, E. C.

Cohen, M.

Colineau, J.

Corcoran, J. C.

J. C. Corcoran and F. Durville, “Experimental demonstration of a phase-locked laser array using a self-Fourier cavity,” Appl. Phys. Lett. 86(20), 201118 (2005).
[CrossRef]

Culpepper, M. A.

Desfarges-Berthelemot, A.

V. Kermene, A. Desfarges-Berthelemot, A. Barthelemy, J. Lhermite, and J. Guillot, “Passive co-phasing of fiber lasers for coherent combining,” Fiber Int. Opt. 27(5), 453–465 (2008).
[CrossRef]

J. Lhermite, A. Desfarges-Berthelemot, V. Kermène, and A. Barthélémy, “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]

D. Sabourdy, V. Kermène, A. Desfarges-Berthelemot, L. Lefort, A. Barthélémy, C. Mahodaux, and D. Pureur, “Power scaling of fibre lasers with all-fibre interferometric cavity,” Electron. Lett. 38(14), 692–693 (2002).
[CrossRef]

Durville, F.

J. C. Corcoran and F. Durville, “Experimental demonstration of a phase-locked laser array using a self-Fourier cavity,” Appl. Phys. Lett. 86(20), 201118 (2005).
[CrossRef]

Eberhardt, R.

J. Limpert, F. Roser, S. Klingebiel, T. Schreiber, C. Wirth, T. Peschel, R. Eberhardt, and A. Tiinnermann, “The Rising Power of Fiber Lasers and Amplifiers,” IEEE J. Sel. Top. Quantum Electron. 13(3), 537–545 (2007).
[CrossRef]

Gavrielides, A.

Goodno, G. D.

Guillot, J.

V. Kermene, A. Desfarges-Berthelemot, A. Barthelemy, J. Lhermite, and J. Guillot, “Passive co-phasing of fiber lasers for coherent combining,” Fiber Int. Opt. 27(5), 453–465 (2008).
[CrossRef]

Hammer, J. A.

Higgs, C.

C. X. Yu, J. E. Kansky, S. E. J. Shaw, D. V. Murphy, and C. Higgs, “Coherent beam combining of large number of PM fibres in 2-D fibre array,” Electron. Lett. 42(18), 1024 (2006).
[CrossRef]

Ho, J. G.

Huignard, J. P.

Jones, D. C.

Kansky, J. E.

C. X. Yu, J. E. Kansky, S. E. J. Shaw, D. V. Murphy, and C. Higgs, “Coherent beam combining of large number of PM fibres in 2-D fibre array,” Electron. Lett. 42(18), 1024 (2006).
[CrossRef]

Kermene, V.

V. Kermene, A. Desfarges-Berthelemot, A. Barthelemy, J. Lhermite, and J. Guillot, “Passive co-phasing of fiber lasers for coherent combining,” Fiber Int. Opt. 27(5), 453–465 (2008).
[CrossRef]

Kermène, V.

J. Lhermite, A. Desfarges-Berthelemot, V. Kermène, and A. Barthélémy, “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]

D. Sabourdy, V. Kermène, A. Desfarges-Berthelemot, L. Lefort, A. Barthélémy, C. Mahodaux, and D. Pureur, “Power scaling of fibre lasers with all-fibre interferometric cavity,” Electron. Lett. 38(14), 692–693 (2002).
[CrossRef]

Klingebiel, S.

J. Limpert, F. Roser, S. Klingebiel, T. Schreiber, C. Wirth, T. Peschel, R. Eberhardt, and A. Tiinnermann, “The Rising Power of Fiber Lasers and Amplifiers,” IEEE J. Sel. Top. Quantum Electron. 13(3), 537–545 (2007).
[CrossRef]

Lefort, L.

D. Sabourdy, V. Kermène, A. Desfarges-Berthelemot, L. Lefort, A. Barthélémy, C. Mahodaux, and D. Pureur, “Power scaling of fibre lasers with all-fibre interferometric cavity,” Electron. Lett. 38(14), 692–693 (2002).
[CrossRef]

Lhermite, J.

V. Kermene, A. Desfarges-Berthelemot, A. Barthelemy, J. Lhermite, and J. Guillot, “Passive co-phasing of fiber lasers for coherent combining,” Fiber Int. Opt. 27(5), 453–465 (2008).
[CrossRef]

J. Lhermite, A. Desfarges-Berthelemot, V. Kermène, and A. Barthélémy, “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]

Limpert, J.

J. Limpert, F. Roser, S. Klingebiel, T. Schreiber, C. Wirth, T. Peschel, R. Eberhardt, and A. Tiinnermann, “The Rising Power of Fiber Lasers and Amplifiers,” IEEE J. Sel. Top. Quantum Electron. 13(3), 537–545 (2007).
[CrossRef]

Lu, C. A.

Mahodaux, C.

D. Sabourdy, V. Kermène, A. Desfarges-Berthelemot, L. Lefort, A. Barthélémy, C. Mahodaux, and D. Pureur, “Power scaling of fibre lasers with all-fibre interferometric cavity,” Electron. Lett. 38(14), 692–693 (2002).
[CrossRef]

Mangir, M.

Minden, M.

Mosk, A. P.

Murphy, D. V.

C. X. Yu, J. E. Kansky, S. E. J. Shaw, D. V. Murphy, and C. Higgs, “Coherent beam combining of large number of PM fibres in 2-D fibre array,” Electron. Lett. 42(18), 1024 (2006).
[CrossRef]

Nelson, D. J.

Peschel, T.

J. Limpert, F. Roser, S. Klingebiel, T. Schreiber, C. Wirth, T. Peschel, R. Eberhardt, and A. Tiinnermann, “The Rising Power of Fiber Lasers and Amplifiers,” IEEE J. Sel. Top. Quantum Electron. 13(3), 537–545 (2007).
[CrossRef]

Peterson, P.

Pilkington, D.

Pureur, D.

D. Sabourdy, V. Kermène, A. Desfarges-Berthelemot, L. Lefort, A. Barthélémy, C. Mahodaux, and D. Pureur, “Power scaling of fibre lasers with all-fibre interferometric cavity,” Electron. Lett. 38(14), 692–693 (2002).
[CrossRef]

Rice, R. R.

Ricklin, J. C.

Roser, F.

J. Limpert, F. Roser, S. Klingebiel, T. Schreiber, C. Wirth, T. Peschel, R. Eberhardt, and A. Tiinnermann, “The Rising Power of Fiber Lasers and Amplifiers,” IEEE J. Sel. Top. Quantum Electron. 13(3), 537–545 (2007).
[CrossRef]

Rothenberg, J.

Sabourdy, D.

D. Sabourdy, V. Kermène, A. Desfarges-Berthelemot, L. Lefort, A. Barthélémy, C. Mahodaux, and D. Pureur, “Power scaling of fibre lasers with all-fibre interferometric cavity,” Electron. Lett. 38(14), 692–693 (2002).
[CrossRef]

Sanchez, A. D.

Schreiber, T.

J. Limpert, F. Roser, S. Klingebiel, T. Schreiber, C. Wirth, T. Peschel, R. Eberhardt, and A. Tiinnermann, “The Rising Power of Fiber Lasers and Amplifiers,” IEEE J. Sel. Top. Quantum Electron. 13(3), 537–545 (2007).
[CrossRef]

Shaw, S. E. J.

C. X. Yu, J. E. Kansky, S. E. J. Shaw, D. V. Murphy, and C. Higgs, “Coherent beam combining of large number of PM fibres in 2-D fibre array,” Electron. Lett. 42(18), 1024 (2006).
[CrossRef]

Shay, T. M.

Simpson, T. B.

Spring, J.

Thielen, P.

Tiinnermann, A.

J. Limpert, F. Roser, S. Klingebiel, T. Schreiber, C. Wirth, T. Peschel, R. Eberhardt, and A. Tiinnermann, “The Rising Power of Fiber Lasers and Amplifiers,” IEEE J. Sel. Top. Quantum Electron. 13(3), 537–545 (2007).
[CrossRef]

Vellekoop, I. M.

Vorontsov, M. A.

Wang, S.

Ward, B.

Weber, M.

Weyrauch, T.

Wickham, M.

Wirth, C.

J. Limpert, F. Roser, S. Klingebiel, T. Schreiber, C. Wirth, T. Peschel, R. Eberhardt, and A. Tiinnermann, “The Rising Power of Fiber Lasers and Amplifiers,” IEEE J. Sel. Top. Quantum Electron. 13(3), 537–545 (2007).
[CrossRef]

Yu, C. X.

C. X. Yu, J. E. Kansky, S. E. J. Shaw, D. V. Murphy, and C. Higgs, “Coherent beam combining of large number of PM fibres in 2-D fibre array,” Electron. Lett. 42(18), 1024 (2006).
[CrossRef]

Appl. Opt. (1)

Appl. Phys. Lett. (1)

J. C. Corcoran and F. Durville, “Experimental demonstration of a phase-locked laser array using a self-Fourier cavity,” Appl. Phys. Lett. 86(20), 201118 (2005).
[CrossRef]

Electron. Lett. (2)

D. Sabourdy, V. Kermène, A. Desfarges-Berthelemot, L. Lefort, A. Barthélémy, C. Mahodaux, and D. Pureur, “Power scaling of fibre lasers with all-fibre interferometric cavity,” Electron. Lett. 38(14), 692–693 (2002).
[CrossRef]

C. X. Yu, J. E. Kansky, S. E. J. Shaw, D. V. Murphy, and C. Higgs, “Coherent beam combining of large number of PM fibres in 2-D fibre array,” Electron. Lett. 42(18), 1024 (2006).
[CrossRef]

Fiber Int. Opt. (1)

V. Kermene, A. Desfarges-Berthelemot, A. Barthelemy, J. Lhermite, and J. Guillot, “Passive co-phasing of fiber lasers for coherent combining,” Fiber Int. Opt. 27(5), 453–465 (2008).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron. (1)

J. Limpert, F. Roser, S. Klingebiel, T. Schreiber, C. Wirth, T. Peschel, R. Eberhardt, and A. Tiinnermann, “The Rising Power of Fiber Lasers and Amplifiers,” IEEE J. Sel. Top. Quantum Electron. 13(3), 537–545 (2007).
[CrossRef]

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

Opt. Express (2)

Opt. Lett. (5)

Other (2)

D. Gapontsev, and I. P. G. Photonics, “6kW CW Single Mode Ytterbium Fiber Laser in All-Fiber Format,” in Solid State and Diode Laser Technology Review, Albuquerque (2008).

I. Hartl, A. Marcinkevicius, H. A. McKay, L. Dong and M. E. Fermann, Advanced Solid State Laser 2009, paper TuA6.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (6)

Fig. 1
Fig. 1

Experimental setup. A spatial light modulator (SLM) displaying 49 grating shapes the input beam into an array of light spots of identical power to be coupled to the 49 cores of a passive fiber. The SLM also adjusts the input phase distribution in order to get, at the output of the MCF, an array of beams with uniform phase. The command of the SLM comes from a computer controlled servo-loop with feedback from a single detector located on axis in the far field. L1-L2: optical system imaging the SLM 49 mini gratings onto the 7x7 fiber cores. L3: focusing lens displaying the far field of the 49 output beams on the detector. L3-L4 imaging system at the multicore fiber output.

Fig. 2
Fig. 2

Scanning electron microscope image of the fiber cross-section showing the 7x7 square array of single mode cores.

Fig. 3
Fig. 3

The phase only liquid crystal SLM is used as a 7x7 square array of blazed diffraction gratings (grating periodicity p = 88µm). The relative transverse positions of the mini grating lines (δp) control the phase-shift difference between the 49 diffracted beams.

Fig. 4
Fig. 4

Experimental recordings of (a) the fiber exit end near field, (b) the fiber output far field with 49 input beams of uniform input phase and (c) the fiber output far field after appropriate shaping of the input phase distributions to get a co-phased array at the exit. Profiles of far field cross-section are shown on the right side of the figure.

Fig. 5
Fig. 5

Theoretical intensity distribution of a 7x7 array of Gaussian beams (a) together with the corresponding far field (b) in the case of a uniform phase.

Fig. 6
Fig. 6

Experimental recordings of the fiber output far field after appropriate shaping of the 49 input phase relationships to get a co-phased array at the exit. The input beams are pulse (120fs) train of 80 MHz repetition rate.

Equations (1)

Equations on this page are rendered with MathJax. Learn more.

E cc =   Σ  A mn exp ( if mn )

Metrics