Chin. Phys. Lett.  2010, Vol. 27 Issue (3): 034207    DOI: 10.1088/0256-307X/27/3/034207
FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
Efficient Phase Locking of Fiber Amplifiers Using a Low-Cost and High-Damage-Threshold Phase Control System
ZHOU Pu, MA Yan-Xing, WANG Xiao-Lin, MA Hao-Tong, XU Xiao-Jun, LIU Ze-Jin
College of Optic-electric Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073
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ZHOU Pu, MA Yan-Xing, WANG Xiao-Lin et al  2010 Chin. Phys. Lett. 27 034207
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Abstract We propose a low-cost and high-damage-threshold phase control system that employs a piezoelectric ceramic transducer modulator controlled by a stochastic parallel gradient descent algorithm. Efficient phase locking of two fiber amplifiers is demonstrated. Experimental results show that energy encircled in the target pinhole is increased by a factor of 1.76 and the visibility of the fringe pattern is as high as 90% when the system is in close-loop. The phase control system has potential in phase locking of large-number and high-power fiber laser endeavors.
Keywords: 42.60.Da      42.30.Kq      42.60.Jf     
Received: 01 April 2009      Published: 09 March 2010
PACS:  42.60.Da (Resonators, cavities, amplifiers, arrays, and rings)  
  42.30.Kq (Fourier optics)  
  42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/27/3/034207       OR      https://cpl.iphy.ac.cn/Y2010/V27/I3/034207
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Articles by authors
ZHOU Pu
MA Yan-Xing
WANG Xiao-Lin
MA Hao-Tong
XU Xiao-Jun
LIU Ze-Jin
[1] Fan T Y 2005 IEEE J. Sel. Top. Quantum Electron. 11 567
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[4] Shay T M, Benham V, Baker J T, Sanchez A D 2007 IEEE J. Sel. Top. Quantum Electron. 13 480
[5] Xiao R, Hou J, Liu M, Jiang Z F 2006 Opt. Express 16 2015
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[7] He B, Lou Q H, Wang W et al 2008 Appl. Phys. Lett. 92 251115
[8] Peng Q, Zhou Y, Chen Y et al 2005 Electron. Lett. 41
[9] Li J F, Duan K L, Wang Y S et al 2008 IEEE Photon. Technol. Lett. 20 888
[10] Jones D C, Stacey C D and Scott A M 2007 Opt. Lett. 32 466
[11] Yi Y, Shi K, Lu W D and Jian S S 1995 Appl. Opt. 34 7383
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[15] Zhou P, Liu Z J, Wang X L, Ma Y X et al 2008 Chin. Phys. Lett. 26 044202
[16] Zhou P, Liu Z J, Wang X L, Ma Y X et al 2009 IEEE J. Sel. Top. Quantum Electron. 15 248
[17] Vorontsov M A and Carhart G W 2007 Opt. Lett. 22 907
[18] Vorontsov M A and Carhart G W 2000 J. Opt. Soc. Am. A 17 1440
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