Abstract

A new architecture for active coherent beam combining of a large number of fibers is demonstrated. The approach is based on a self-referenced quadriwave shearing interferometer and active control with arrays of electro-optic ceramic modulators. Coherent phase combining of 64 independent amplified fibers is obtained. This is to our knowledge the highest reported number of combined fibers. A Strehl ratio degradation less than 2dB is achieved with a residual phase error <λ/10 rms.

© 2011 OSA

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References

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  1. T. Y. Fan, “Laser beam combining for high-power, high radiance sources,” IEEE J. Sel. Top. Quantum Electron. 11(3), 567–577 (2005).
    [CrossRef]
  2. C. Labaune, D. Hulin, A. Galvanauskas, and G. Mourou, “On the feasibility of a fiber-based inertial fusion laser driver,” Opt. Commun. 281(15-16), 4075–4080 (2008).
    [CrossRef]
  3. W. M. Neubert, K. H. Kudielka, W. R. Leeb, and A. L. Scholtz, “Experimental demonstration of an optical phased array antenna for laser space communications,” Appl. Opt. 33(18), 3820–3830 (1994).
    [CrossRef] [PubMed]
  4. C. Stace, C. J. C. Harisson, R. G. Clarke, D. C. Jones, and A. M. Scott, “Fiber bundle lasers and their applications,” Paper B21, 1st Electro Magnetic Remote Sensing Defence Technical Conference, Edinburgh, United Kingdom (2004)
  5. 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), 347–353 (2005).
    [CrossRef]
  6. S. J. Augst, T. Y. Fan, and A. Sanchez, “Coherent beam combining and phase noise measurements of ytterbium fiber amplifiers,” Opt. Lett. 29(5), 474–476 (2004).
    [CrossRef] [PubMed]
  7. S. Demoustier, C. Bellanger, A. Brignon, and J. P. Huignard, “Coherent beam combining of 1.5µm Er-Yb doped fiber amplifiers,” Fiber Int. Opt. 27(5), 392–406 (2008).
    [CrossRef]
  8. 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]
  9. B. Bennaï, L. Lombard, V. Jolivet, C. Delezoide, E. Pourtal, P. Bourdon, G. Canat, O. Vasseur, and Y. Jaouën, “Brightness scaling based on 1.55 µm fiber amplifiers coherent combining,” Fiber Int. Opt. 27(5), 355–369 (2008).
    [CrossRef]
  10. L. Liu, M. A. Vorontsov, E. Polnau, T. Weyrauch, and L. A. Beresnev, “Adaptive phase-locked fiber array with wavefront tip-tilt compensation,” Proc. SPIE 6708, 67080K, 67080K-12 (2007).
    [CrossRef]
  11. C. X. Yu, J. E. Kansky, S. E. J. Shaw, D. V. Murphy, and C. Higgs, “Coherent beam combining of a large number of PM fibers in 2-D fiber array,” Electron. Lett. 42(18), 1024–1025 (2006).
    [CrossRef]
  12. http://www.suss-microoptics.com/
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    [CrossRef]
  14. B. Toulon, J. Primot, N. Guérineau, R. Haïdar, S. Velghe, and R. Mercier, “Step-selective measurement by grating-based lateral shearing interferometry for segmented telescopes,” Opt. Commun. 279(2), 240–243 (2007).
    [CrossRef]
  15. B. Toulon, G. Vincent, R. Haïdar, N. Guérineau, S. Collin, J. L. Pelouard, and J. Primot, “Holistic characterization of complex transmittances generated by infrared sub-wavelength gratings,” Opt. Express 16(10), 7060–7070 (2008).
    [CrossRef] [PubMed]
  16. S. Mousset, C. Rouyer, G. Marre, N. Blanchot, S. Montant, and B. Wattellier, “Piston measurement by quadriwave lateral shearing interferometry,” Opt. Lett. 31(17), 2634–2636 (2006).
    [CrossRef] [PubMed]
  17. C. Bellanger, B. Toulon, J. Primot, L. Lombard, J. Bourderionnet, and A. Brignon, “Collective phase measurement of an array of fiber lasers by quadriwave lateral shearing interferometry for coherent beam combining,” Opt. Lett. 35(23), 3931–3933 (2010).
    [CrossRef] [PubMed]
  18. G. D. Goodno, C. C. Shih, and J. E. Rothenberg, “Perturbative analysis of coherent combining efficiency with mismatched lasers,” Opt. Express 18(24), 25403–25414 (2010).
    [CrossRef] [PubMed]

2011 (1)

C. Bellanger, A. Brignon, B. Toulon, J. Primot, F. Bouamrane, T. Bouvet, S. Megtert, L. Quetel, and T. Allain, “Design of a fiber-collimated array for beam combining,” Opt. Eng. 50(2), 025005 (2011).
[CrossRef]

2010 (2)

2008 (4)

B. Toulon, G. Vincent, R. Haïdar, N. Guérineau, S. Collin, J. L. Pelouard, and J. Primot, “Holistic characterization of complex transmittances generated by infrared sub-wavelength gratings,” Opt. Express 16(10), 7060–7070 (2008).
[CrossRef] [PubMed]

S. Demoustier, C. Bellanger, A. Brignon, and J. P. Huignard, “Coherent beam combining of 1.5µm Er-Yb doped fiber amplifiers,” Fiber Int. Opt. 27(5), 392–406 (2008).
[CrossRef]

C. Labaune, D. Hulin, A. Galvanauskas, and G. Mourou, “On the feasibility of a fiber-based inertial fusion laser driver,” Opt. Commun. 281(15-16), 4075–4080 (2008).
[CrossRef]

B. Bennaï, L. Lombard, V. Jolivet, C. Delezoide, E. Pourtal, P. Bourdon, G. Canat, O. Vasseur, and Y. Jaouën, “Brightness scaling based on 1.55 µm fiber amplifiers coherent combining,” Fiber Int. Opt. 27(5), 355–369 (2008).
[CrossRef]

2007 (2)

L. Liu, M. A. Vorontsov, E. Polnau, T. Weyrauch, and L. A. Beresnev, “Adaptive phase-locked fiber array with wavefront tip-tilt compensation,” Proc. SPIE 6708, 67080K, 67080K-12 (2007).
[CrossRef]

B. Toulon, J. Primot, N. Guérineau, R. Haïdar, S. Velghe, and R. Mercier, “Step-selective measurement by grating-based lateral shearing interferometry for segmented telescopes,” Opt. Commun. 279(2), 240–243 (2007).
[CrossRef]

2006 (3)

2005 (2)

2004 (1)

1994 (1)

Allain, T.

C. Bellanger, A. Brignon, B. Toulon, J. Primot, F. Bouamrane, T. Bouvet, S. Megtert, L. Quetel, and T. Allain, “Design of a fiber-collimated array for beam combining,” Opt. Eng. 50(2), 025005 (2011).
[CrossRef]

Augst, S. J.

Baker, J. T.

Bellanger, C.

C. Bellanger, A. Brignon, B. Toulon, J. Primot, F. Bouamrane, T. Bouvet, S. Megtert, L. Quetel, and T. Allain, “Design of a fiber-collimated array for beam combining,” Opt. Eng. 50(2), 025005 (2011).
[CrossRef]

C. Bellanger, B. Toulon, J. Primot, L. Lombard, J. Bourderionnet, and A. Brignon, “Collective phase measurement of an array of fiber lasers by quadriwave lateral shearing interferometry for coherent beam combining,” Opt. Lett. 35(23), 3931–3933 (2010).
[CrossRef] [PubMed]

S. Demoustier, C. Bellanger, A. Brignon, and J. P. Huignard, “Coherent beam combining of 1.5µm Er-Yb doped fiber amplifiers,” Fiber Int. Opt. 27(5), 392–406 (2008).
[CrossRef]

Benham, V.

Bennaï, B.

B. Bennaï, L. Lombard, V. Jolivet, C. Delezoide, E. Pourtal, P. Bourdon, G. Canat, O. Vasseur, and Y. Jaouën, “Brightness scaling based on 1.55 µm fiber amplifiers coherent combining,” Fiber Int. Opt. 27(5), 355–369 (2008).
[CrossRef]

Beresnev, L. A.

L. Liu, M. A. Vorontsov, E. Polnau, T. Weyrauch, and L. A. Beresnev, “Adaptive phase-locked fiber array with wavefront tip-tilt compensation,” Proc. SPIE 6708, 67080K, 67080K-12 (2007).
[CrossRef]

Blanchot, N.

Bouamrane, F.

C. Bellanger, A. Brignon, B. Toulon, J. Primot, F. Bouamrane, T. Bouvet, S. Megtert, L. Quetel, and T. Allain, “Design of a fiber-collimated array for beam combining,” Opt. Eng. 50(2), 025005 (2011).
[CrossRef]

Bourderionnet, J.

Bourdon, P.

B. Bennaï, L. Lombard, V. Jolivet, C. Delezoide, E. Pourtal, P. Bourdon, G. Canat, O. Vasseur, and Y. Jaouën, “Brightness scaling based on 1.55 µm fiber amplifiers coherent combining,” Fiber Int. Opt. 27(5), 355–369 (2008).
[CrossRef]

Bouvet, T.

C. Bellanger, A. Brignon, B. Toulon, J. Primot, F. Bouamrane, T. Bouvet, S. Megtert, L. Quetel, and T. Allain, “Design of a fiber-collimated array for beam combining,” Opt. Eng. 50(2), 025005 (2011).
[CrossRef]

Brignon, A.

C. Bellanger, A. Brignon, B. Toulon, J. Primot, F. Bouamrane, T. Bouvet, S. Megtert, L. Quetel, and T. Allain, “Design of a fiber-collimated array for beam combining,” Opt. Eng. 50(2), 025005 (2011).
[CrossRef]

C. Bellanger, B. Toulon, J. Primot, L. Lombard, J. Bourderionnet, and A. Brignon, “Collective phase measurement of an array of fiber lasers by quadriwave lateral shearing interferometry for coherent beam combining,” Opt. Lett. 35(23), 3931–3933 (2010).
[CrossRef] [PubMed]

S. Demoustier, C. Bellanger, A. Brignon, and J. P. Huignard, “Coherent beam combining of 1.5µm Er-Yb doped fiber amplifiers,” Fiber Int. Opt. 27(5), 392–406 (2008).
[CrossRef]

Bruesselbach, H.

Canat, G.

B. Bennaï, L. Lombard, V. Jolivet, C. Delezoide, E. Pourtal, P. Bourdon, G. Canat, O. Vasseur, and Y. Jaouën, “Brightness scaling based on 1.55 µm fiber amplifiers coherent combining,” Fiber Int. Opt. 27(5), 355–369 (2008).
[CrossRef]

Collin, S.

Culpepper, M. A.

Delezoide, C.

B. Bennaï, L. Lombard, V. Jolivet, C. Delezoide, E. Pourtal, P. Bourdon, G. Canat, O. Vasseur, and Y. Jaouën, “Brightness scaling based on 1.55 µm fiber amplifiers coherent combining,” Fiber Int. Opt. 27(5), 355–369 (2008).
[CrossRef]

Demoustier, S.

S. Demoustier, C. Bellanger, A. Brignon, and J. P. Huignard, “Coherent beam combining of 1.5µm Er-Yb doped fiber amplifiers,” Fiber Int. Opt. 27(5), 392–406 (2008).
[CrossRef]

Fan, T. Y.

T. Y. Fan, “Laser beam combining for high-power, high radiance sources,” IEEE J. Sel. Top. Quantum Electron. 11(3), 567–577 (2005).
[CrossRef]

S. J. Augst, T. Y. Fan, and A. Sanchez, “Coherent beam combining and phase noise measurements of ytterbium fiber amplifiers,” Opt. Lett. 29(5), 474–476 (2004).
[CrossRef] [PubMed]

Galvanauskas, A.

C. Labaune, D. Hulin, A. Galvanauskas, and G. Mourou, “On the feasibility of a fiber-based inertial fusion laser driver,” Opt. Commun. 281(15-16), 4075–4080 (2008).
[CrossRef]

Goodno, G. D.

Guérineau, N.

B. Toulon, G. Vincent, R. Haïdar, N. Guérineau, S. Collin, J. L. Pelouard, and J. Primot, “Holistic characterization of complex transmittances generated by infrared sub-wavelength gratings,” Opt. Express 16(10), 7060–7070 (2008).
[CrossRef] [PubMed]

B. Toulon, J. Primot, N. Guérineau, R. Haïdar, S. Velghe, and R. Mercier, “Step-selective measurement by grating-based lateral shearing interferometry for segmented telescopes,” Opt. Commun. 279(2), 240–243 (2007).
[CrossRef]

Haïdar, R.

B. Toulon, G. Vincent, R. Haïdar, N. Guérineau, S. Collin, J. L. Pelouard, and J. Primot, “Holistic characterization of complex transmittances generated by infrared sub-wavelength gratings,” Opt. Express 16(10), 7060–7070 (2008).
[CrossRef] [PubMed]

B. Toulon, J. Primot, N. Guérineau, R. Haïdar, S. Velghe, and R. Mercier, “Step-selective measurement by grating-based lateral shearing interferometry for segmented telescopes,” Opt. Commun. 279(2), 240–243 (2007).
[CrossRef]

Higgs, C.

C. X. Yu, J. E. Kansky, S. E. J. Shaw, D. V. Murphy, and C. Higgs, “Coherent beam combining of a large number of PM fibers in 2-D fiber array,” Electron. Lett. 42(18), 1024–1025 (2006).
[CrossRef]

Huignard, J. P.

S. Demoustier, C. Bellanger, A. Brignon, and J. P. Huignard, “Coherent beam combining of 1.5µm Er-Yb doped fiber amplifiers,” Fiber Int. Opt. 27(5), 392–406 (2008).
[CrossRef]

Hulin, D.

C. Labaune, D. Hulin, A. Galvanauskas, and G. Mourou, “On the feasibility of a fiber-based inertial fusion laser driver,” Opt. Commun. 281(15-16), 4075–4080 (2008).
[CrossRef]

Jaouën, Y.

B. Bennaï, L. Lombard, V. Jolivet, C. Delezoide, E. Pourtal, P. Bourdon, G. Canat, O. Vasseur, and Y. Jaouën, “Brightness scaling based on 1.55 µm fiber amplifiers coherent combining,” Fiber Int. Opt. 27(5), 355–369 (2008).
[CrossRef]

Jolivet, V.

B. Bennaï, L. Lombard, V. Jolivet, C. Delezoide, E. Pourtal, P. Bourdon, G. Canat, O. Vasseur, and Y. Jaouën, “Brightness scaling based on 1.55 µm fiber amplifiers coherent combining,” Fiber Int. Opt. 27(5), 355–369 (2008).
[CrossRef]

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 a large number of PM fibers in 2-D fiber array,” Electron. Lett. 42(18), 1024–1025 (2006).
[CrossRef]

Kudielka, K. H.

Labaune, C.

C. Labaune, D. Hulin, A. Galvanauskas, and G. Mourou, “On the feasibility of a fiber-based inertial fusion laser driver,” Opt. Commun. 281(15-16), 4075–4080 (2008).
[CrossRef]

Leeb, W. R.

Liu, L.

L. Liu, M. A. Vorontsov, E. Polnau, T. Weyrauch, and L. A. Beresnev, “Adaptive phase-locked fiber array with wavefront tip-tilt compensation,” Proc. SPIE 6708, 67080K, 67080K-12 (2007).
[CrossRef]

Lombard, L.

C. Bellanger, B. Toulon, J. Primot, L. Lombard, J. Bourderionnet, and A. Brignon, “Collective phase measurement of an array of fiber lasers by quadriwave lateral shearing interferometry for coherent beam combining,” Opt. Lett. 35(23), 3931–3933 (2010).
[CrossRef] [PubMed]

B. Bennaï, L. Lombard, V. Jolivet, C. Delezoide, E. Pourtal, P. Bourdon, G. Canat, O. Vasseur, and Y. Jaouën, “Brightness scaling based on 1.55 µm fiber amplifiers coherent combining,” Fiber Int. Opt. 27(5), 355–369 (2008).
[CrossRef]

Lu, C. A.

Mangir, M.

Marre, G.

Megtert, S.

C. Bellanger, A. Brignon, B. Toulon, J. Primot, F. Bouamrane, T. Bouvet, S. Megtert, L. Quetel, and T. Allain, “Design of a fiber-collimated array for beam combining,” Opt. Eng. 50(2), 025005 (2011).
[CrossRef]

Mercier, R.

B. Toulon, J. Primot, N. Guérineau, R. Haïdar, S. Velghe, and R. Mercier, “Step-selective measurement by grating-based lateral shearing interferometry for segmented telescopes,” Opt. Commun. 279(2), 240–243 (2007).
[CrossRef]

Minden, M.

Montant, S.

Mourou, G.

C. Labaune, D. Hulin, A. Galvanauskas, and G. Mourou, “On the feasibility of a fiber-based inertial fusion laser driver,” Opt. Commun. 281(15-16), 4075–4080 (2008).
[CrossRef]

Mousset, S.

Murphy, D. V.

C. X. Yu, J. E. Kansky, S. E. J. Shaw, D. V. Murphy, and C. Higgs, “Coherent beam combining of a large number of PM fibers in 2-D fiber array,” Electron. Lett. 42(18), 1024–1025 (2006).
[CrossRef]

Nelson, D. J.

Neubert, W. M.

Pelouard, J. L.

Pilkington, D.

Polnau, E.

L. Liu, M. A. Vorontsov, E. Polnau, T. Weyrauch, and L. A. Beresnev, “Adaptive phase-locked fiber array with wavefront tip-tilt compensation,” Proc. SPIE 6708, 67080K, 67080K-12 (2007).
[CrossRef]

Pourtal, E.

B. Bennaï, L. Lombard, V. Jolivet, C. Delezoide, E. Pourtal, P. Bourdon, G. Canat, O. Vasseur, and Y. Jaouën, “Brightness scaling based on 1.55 µm fiber amplifiers coherent combining,” Fiber Int. Opt. 27(5), 355–369 (2008).
[CrossRef]

Primot, J.

C. Bellanger, A. Brignon, B. Toulon, J. Primot, F. Bouamrane, T. Bouvet, S. Megtert, L. Quetel, and T. Allain, “Design of a fiber-collimated array for beam combining,” Opt. Eng. 50(2), 025005 (2011).
[CrossRef]

C. Bellanger, B. Toulon, J. Primot, L. Lombard, J. Bourderionnet, and A. Brignon, “Collective phase measurement of an array of fiber lasers by quadriwave lateral shearing interferometry for coherent beam combining,” Opt. Lett. 35(23), 3931–3933 (2010).
[CrossRef] [PubMed]

B. Toulon, G. Vincent, R. Haïdar, N. Guérineau, S. Collin, J. L. Pelouard, and J. Primot, “Holistic characterization of complex transmittances generated by infrared sub-wavelength gratings,” Opt. Express 16(10), 7060–7070 (2008).
[CrossRef] [PubMed]

B. Toulon, J. Primot, N. Guérineau, R. Haïdar, S. Velghe, and R. Mercier, “Step-selective measurement by grating-based lateral shearing interferometry for segmented telescopes,” Opt. Commun. 279(2), 240–243 (2007).
[CrossRef]

Quetel, L.

C. Bellanger, A. Brignon, B. Toulon, J. Primot, F. Bouamrane, T. Bouvet, S. Megtert, L. Quetel, and T. Allain, “Design of a fiber-collimated array for beam combining,” Opt. Eng. 50(2), 025005 (2011).
[CrossRef]

Rothenberg, J. E.

Rouyer, C.

Sanchez, A.

Sanchez, A. D.

Scholtz, A. L.

Shaw, S. E. J.

C. X. Yu, J. E. Kansky, S. E. J. Shaw, D. V. Murphy, and C. Higgs, “Coherent beam combining of a large number of PM fibers in 2-D fiber array,” Electron. Lett. 42(18), 1024–1025 (2006).
[CrossRef]

Shay, T. M.

Shih, C. C.

Spring, J.

Toulon, B.

C. Bellanger, A. Brignon, B. Toulon, J. Primot, F. Bouamrane, T. Bouvet, S. Megtert, L. Quetel, and T. Allain, “Design of a fiber-collimated array for beam combining,” Opt. Eng. 50(2), 025005 (2011).
[CrossRef]

C. Bellanger, B. Toulon, J. Primot, L. Lombard, J. Bourderionnet, and A. Brignon, “Collective phase measurement of an array of fiber lasers by quadriwave lateral shearing interferometry for coherent beam combining,” Opt. Lett. 35(23), 3931–3933 (2010).
[CrossRef] [PubMed]

B. Toulon, G. Vincent, R. Haïdar, N. Guérineau, S. Collin, J. L. Pelouard, and J. Primot, “Holistic characterization of complex transmittances generated by infrared sub-wavelength gratings,” Opt. Express 16(10), 7060–7070 (2008).
[CrossRef] [PubMed]

B. Toulon, J. Primot, N. Guérineau, R. Haïdar, S. Velghe, and R. Mercier, “Step-selective measurement by grating-based lateral shearing interferometry for segmented telescopes,” Opt. Commun. 279(2), 240–243 (2007).
[CrossRef]

Vasseur, O.

B. Bennaï, L. Lombard, V. Jolivet, C. Delezoide, E. Pourtal, P. Bourdon, G. Canat, O. Vasseur, and Y. Jaouën, “Brightness scaling based on 1.55 µm fiber amplifiers coherent combining,” Fiber Int. Opt. 27(5), 355–369 (2008).
[CrossRef]

Velghe, S.

B. Toulon, J. Primot, N. Guérineau, R. Haïdar, S. Velghe, and R. Mercier, “Step-selective measurement by grating-based lateral shearing interferometry for segmented telescopes,” Opt. Commun. 279(2), 240–243 (2007).
[CrossRef]

Vincent, G.

Vorontsov, M. A.

L. Liu, M. A. Vorontsov, E. Polnau, T. Weyrauch, and L. A. Beresnev, “Adaptive phase-locked fiber array with wavefront tip-tilt compensation,” Proc. SPIE 6708, 67080K, 67080K-12 (2007).
[CrossRef]

Wang, S.

Ward, B.

Wattellier, B.

Weyrauch, T.

L. Liu, M. A. Vorontsov, E. Polnau, T. Weyrauch, and L. A. Beresnev, “Adaptive phase-locked fiber array with wavefront tip-tilt compensation,” Proc. SPIE 6708, 67080K, 67080K-12 (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 a large number of PM fibers in 2-D fiber array,” Electron. Lett. 42(18), 1024–1025 (2006).
[CrossRef]

Appl. Opt. (1)

Electron. Lett. (1)

C. X. Yu, J. E. Kansky, S. E. J. Shaw, D. V. Murphy, and C. Higgs, “Coherent beam combining of a large number of PM fibers in 2-D fiber array,” Electron. Lett. 42(18), 1024–1025 (2006).
[CrossRef]

Fiber Int. Opt. (2)

B. Bennaï, L. Lombard, V. Jolivet, C. Delezoide, E. Pourtal, P. Bourdon, G. Canat, O. Vasseur, and Y. Jaouën, “Brightness scaling based on 1.55 µm fiber amplifiers coherent combining,” Fiber Int. Opt. 27(5), 355–369 (2008).
[CrossRef]

S. Demoustier, C. Bellanger, A. Brignon, and J. P. Huignard, “Coherent beam combining of 1.5µm Er-Yb doped fiber amplifiers,” Fiber Int. Opt. 27(5), 392–406 (2008).
[CrossRef]

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

T. Y. Fan, “Laser beam combining for high-power, high radiance sources,” IEEE J. Sel. Top. Quantum Electron. 11(3), 567–577 (2005).
[CrossRef]

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

Opt. Commun. (2)

C. Labaune, D. Hulin, A. Galvanauskas, and G. Mourou, “On the feasibility of a fiber-based inertial fusion laser driver,” Opt. Commun. 281(15-16), 4075–4080 (2008).
[CrossRef]

B. Toulon, J. Primot, N. Guérineau, R. Haïdar, S. Velghe, and R. Mercier, “Step-selective measurement by grating-based lateral shearing interferometry for segmented telescopes,” Opt. Commun. 279(2), 240–243 (2007).
[CrossRef]

Opt. Eng. (1)

C. Bellanger, A. Brignon, B. Toulon, J. Primot, F. Bouamrane, T. Bouvet, S. Megtert, L. Quetel, and T. Allain, “Design of a fiber-collimated array for beam combining,” Opt. Eng. 50(2), 025005 (2011).
[CrossRef]

Opt. Express (3)

Opt. Lett. (3)

Proc. SPIE (1)

L. Liu, M. A. Vorontsov, E. Polnau, T. Weyrauch, and L. A. Beresnev, “Adaptive phase-locked fiber array with wavefront tip-tilt compensation,” Proc. SPIE 6708, 67080K, 67080K-12 (2007).
[CrossRef]

Other (2)

C. Stace, C. J. C. Harisson, R. G. Clarke, D. C. Jones, and A. M. Scott, “Fiber bundle lasers and their applications,” Paper B21, 1st Electro Magnetic Remote Sensing Defence Technical Conference, Edinburgh, United Kingdom (2004)

http://www.suss-microoptics.com/

Supplementary Material (1)

» Media 1: AVI (3684 KB)     

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Figures (5)

Fig. 1
Fig. 1

Experimental setup. PC: Polarization Controller. PM EDFA: Polarization Maintaining Erbium Doped Fiber Amplifier. QWLSI: Quadriwave Lateral Shearing Interferometer.

Fig. 2
Fig. 2

Schematic of a phase modulator array (left) and (right).

Fig. 3
Fig. 3

Principle of the self-referenced wavefront analysis technique based on the QWLSI. Right: part of the recorded interference pattern.

Fig. 4
Fig. 4

Experimental (in blue) and theoretical (in red) far-field intensity profiles. Gray curve shows the Fourier transform of an individual output pupil.

Fig. 5
Fig. 5

Single-frame excerpts from video recordings of the far field intensity pattern of the 64 combined fibers (Media 1), when the phase-lock loop is closed.

Equations (3)

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I ( x ) = n r e c t ( x n d a ) × cos ( Ω x + Δ ϕ n ) ,
I ˜ ( u ) = 1 2 [ n F T ( r e c t ( x n d a ) ) δ ( u Ω ) × e i Δ φ n + n F T ( r e c t ( x n d a ) ) δ ( u + Ω ) × e i Δ φ n ]
I ˜ f i l t e r e d ( u ) = 1 2 [ n F T ( r e c t ( x n d a ) ) δ ( u ) × e i Δ ϕ n ] T F 1 ( I ˜ f i l t e r e d ) ( x ) = 1 2 [ n r e c t ( x n d a ) × e i Δ ϕ n ] .

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