| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Coherent Beam Combination of Eight Watt-Level Polarization-Maintained Fiber Amplifiers |
| ZHOU Pu, WANG Xiao-Lin, MA Yan-Xing, MA Hao-Tong, XU Xiao-Jun, LIU Ze-Jin |
| College of Opticelectric Science and Engineering, National University of Defense Technology, Changsha 410073 |
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| Cite this article: |
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ZHOU Pu, WANG Xiao-Lin, MA Yan-Xing et al 2010 Chin. Phys. Lett. 27 034203 |
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Abstract We demonstrate the coherent beam combination of eight Watt-level polarization-maintained fiber amplifiers. The phase control signal of each amplifier is generated by running a stochastic parallel gradient descent algorithm on a digital signal processor (DSP). The experimental result shows that the whole system in close-loop performs well for long-time observation. Energy encircled in the target pinhole is 6.68 times more than that in open-loop. The combination efficiency is as high as 84.5%.
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| Keywords:
42.60.Da
42.30.Kq
42.60.Jf
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Received: 15 October 2009
Published: 09 March 2010
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| PACS: |
42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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42.30.Kq
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(Fourier optics)
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42.60.Jf
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(Beam characteristics: profile, intensity, and power; spatial pattern formation)
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[1] Fan T Y 2005 IEEE J. Sel. Top. Quantum Electron. 11 567
[2] Huo Y, Cheo P K and King G G 2004 Opt. Express 12 6230
[3] Shirakawa A, Saitou T, Sekiguchi T and Ueda K 2002 Opt. Express 10 1167
[4] He B, Lou Q, Zhou J et al 2007 Chin. Opt. Lett. 5 412
[5] Augst S J, Ranka J K, Fan T Y and Sanchez A 2007 J. Opt. Soc. Am. B 24 1707
[6] Goodno G D, Komine H, McNaught S J, Weiss S B et al 2006 Opt. Lett. 31 1247
[7] Anderegg J, Brosnan S, Cheung E, Epp P et al 2006 Proc. SPIE 6102 61020U
[8] Marmo J, Injeyan H, Komine H et al 2009 Proc. SPIE 7195 719507
[9] Shay T M, Benham V, Baker J T, Ward B et al 2006 Opt. Express 14 12022
[10] Shay T M, Baker J T, Sanchez A D et al 2009 Proc. SPIE 7195 71951M
[11] Liu L, Vorontsov M A 2005 Proc. SPIE 5895 58950P
[12] Liu L, Vorontsov M A, Polnau E, Weyrauch T et al 2007 Proc. SPIE 6708 67080K
[13] Kansky J E, Yu C X, Murphy D V, Shaw S E J et al 2006 Proc. SPIE 6306 63060G
[14] Zhou P, Liu Z, Ma Y, Wang X et al 2009 Acta Opt. Sin. 29 431
[15] Zhou P, Liu Z, Wang X, Ma Y et al 2009 Appl. Phys. Lett. 94 231106
[16] Vorontsov M A 2005 Proc. SPIE 5895 589501
[17] Vorontsov M A and Carhart G W 1997 Opt. Lett. 22 907
[18] Vorontsov M A and Carhart G W 2000 J. Opt. Soc. Am. A 17 1440
[19] Jones D C, Stacey C D and Scott A M 2007 Opt. Lett. 32 466 |
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