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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 33 — Nov. 20, 2009
  • pp: 6537–6540

Coherent beam combination of a hexagonal distributed high power fiber amplifier array

Pu Zhou, Yanxing Ma, Xiaolin Wang, Haotong Ma, Jianhua Wang, Xiaojun Xu, and Zejin Liu  »View Author Affiliations

Applied Optics, Vol. 48, Issue 33, pp. 6537-6540 (2009)

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We demonstrate the coherent beam combination of a hexagonal distributed high power fiber amplifier array. Six polarization-maintained fiber amplifiers are tiled into a hexagonal array by use of a novel beam combiner. The phase control signal for fiber amplifiers is generated by running a stochastic parallel gradient descent algorithm on a digital signal processor. The coherent beam combination with a total output power of 73.5 W is demonstrated. The contrast of the coherent combined beam profile is as high as 81% when the system is closed-loop controlled.

© 2009 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3290) Lasers and laser optics : Laser arrays
(140.3510) Lasers and laser optics : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: September 18, 2009
Revised Manuscript: October 29, 2009
Manuscript Accepted: November 4, 2009
Published: November 17, 2009

Pu Zhou, Yanxing Ma, Xiaolin Wang, Haotong Ma, Jianhua Wang, Xiaojun Xu, and Zejin Liu, "Coherent beam combination of a hexagonal distributed high power fiber amplifier array," Appl. Opt. 48, 6537-6540 (2009)

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  1. T. Y. Fan, “Laser beam combining for high-power, high-radiance sources,” IEEE J. Sel. Top. Quantum Electron. 11, 567-577 (2005). [CrossRef]
  2. A. Shirakawa, T. Saitou, T. Sekiguchi, and K. Ueda, “Coherent addition of fiber lasers by use of a fiber coupler,” Opt. Express 10, 1167-1172 (2002). [PubMed]
  3. H. Bruesselbach, D. C. Jones, M. S. Mangir, M. Minden, and J. L. Rogers, “Self-organized coherence in fiber laser arrays,” Opt. Lett. 30, 1339-1341 (2005). [CrossRef] [PubMed]
  4. D. Sabourdy, V. Kermene, A. Desfarges-Berthelemot, L. Lefort, A. Barthelemy, P. Even, and D. Pureur, “Efficient coherent combining of widely tunable fiber lasers,” Opt. Express 11, 87-97 (2003). [CrossRef] [PubMed]
  5. J. Lhermite, A. Desfarges-Berthelemot, V. Kermene, and A. Barthelemy, “Passive phase locking of an array of four fiber amplifiers by an all-optical feedback loop,” Opt. Lett. 32, 1842-1844 (2007). [CrossRef] [PubMed]
  6. Y. Huo, P. K. Cheo, and G. G. King, “Fundamental mode operation of a 19-core phase locked Yb-doped fiber amplifier,” Opt. Express 12, 6230-6239 (2004). [CrossRef] [PubMed]
  7. J. Anderegg, S. Brosnan, E. Cheung, P. Epp, D. Hammons, H. Komine, M. Weber, and M. Wickham, “Coherently coupled high power fiber arrays,” Proc. SPIE 6102, 61020U (2006). [CrossRef]
  8. J. Marmo, H. Injeyan, H. Komine, S. McNaught, J. Machan, and J. Sollee, “Joint high power solid state laser program advancements at Northrop Grumman,” Proc. SPIE 7195, 719507 (2009). [CrossRef]
  9. S. J. Augst, J. K. Ranka, T. Y. Fan, and A. Sanchez, “Beam combining of ytterbium fiber amplifiers,” J. Opt. Soc. Am. B 24, 1707-1715 (2007). [CrossRef]
  10. T. M. Shay, V. Benham, J. T. Baker, B. Ward, A. D. Sanchez, M. A. Culpepper, D. Pilkington, J. Spring, D. Nelson, and C. A. Lu, “First experimental demonstration of self-synchronous phase locking of an optical array,” Opt. Express 14, 12022-12027 (2006). [CrossRef]
  11. L. Liu and M. A. Vorontsov, “Phase-locking of tiled fiber array using SPGD feedback controller,” Proc. SPIE 5895, 58950P(2005). [CrossRef]
  12. J. E. Kansky, C. X. Yu, D. V. Murphy, S. E. J. Shaw, R. C. Lawrence, and C. Higgs, “Beam control of a 2D polarization maintaining fiber optic phased array with high-fiber count,” Proc. SPIE 6306, 63060G (2006). [CrossRef]
  13. P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, X. Xu, and S. Guo, “Coherent beam combining of fiber amplifiers using stochastic parallel gradient descent algorithm and its application,” IEEE J. Sel. Top. Quantum Electron. 15, 248-256 (2009). [CrossRef]
  14. P. Zhou, Z. Liu, X. Wang, Y. Ma, H. Ma, and X. Xu, “Coherent beam combination of two-dimensional high power fiber amplifier array using stochastic parallel gradient descent algorithm,” Appl. Phys. Lett. 94, 231106 (2009). [CrossRef]
  15. M. A. Vorontsov, T. Weyrauch, L. A. Beresnev, G. W. Carhart, L. Liu, and K. Aschenbach, “Adaptive array of phase-locked fiber collimators: analysis and experimental demonstration,” IEEE J. Sel. Top. Quantum Electron. 15, 269-280 (2009). [CrossRef]
  16. M. A. Vorontsov, “Adaptive photonics phase-locked elements (APPLE): system architecture and wavefront control concept,” Proc. SPIE 5895, 589501 (2005). [CrossRef]
  17. M. A. Vorontsov, G. W. Carhart, M. Cohen, and G. Cauwenberghs, “Adaptive optics based on analog parallel stochastic optimization: analysis and experimental demonstration,” J. Opt. Soc. Am. A 17, 1440-1453 (2000). [CrossRef]

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