Coherent beam combination of 137 W fiber amplifier array using single frequency dithering technique

被引：15

作者：

Ma, Yanxing ^{[1
]}

Wang, Xiaolin ^{[1
]}

Zhou, Pu ^{[1
]}

He, Bing ^{[2
]}

Xiao, Hu ^{[1
]}

Xue, Yuhao ^{[2
]}

Liu, Chi ^{[2
]}

Li, Zhen ^{[2
]}

Xu, Xiaojun ^{[1
]}

Zhou, Jun ^{[2
]}

Si, Lei ^{[1
]}

Liu, Zejin ^{[1
]}

Zhao, Yijun ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Opticelect Sci & Engn, Changsha 410073, Hunan, Peoples R China

[2] Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

来源：

OPTICS AND LASERS IN ENGINEERING | 2011年 / 49卷 / 08期

关键词：

Fiber laser; Coherent beam combination; Phase locking; PHASE-LOCKING;

D O I：

10.1016/j.optlaseng.2011.03.001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate coherent beam combination of 137 W fiber amplifier array using single frequency dithering technique. Four polarization-maintained fiber amplifiers are tiled into 2 x 2 array and the output power of each amplifier is about 35 W. Single frequency dithering algorithm is run on a signal processor based on field programmable gate array (FPGA) for phase control on the fiber amplifiers. When the phase control system goes into closed-loop, the fringe contrast of far-field intensity pattern is improved by more than 87% from 0 in open-loop, and the residual phase error is less than lambda/20. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1089 / 1092

页数：4

共 11 条

[1] 8-watt coherently phased 4-element fiber array [J].

Anderegg, J ;

Brosnan, S ;

Weber, M ;

Komine, H ;

Wickham, M .

ADVANCES IN FIBER LASERS, 2003, 4974 :1-6

[2] Beam Shaping of Single-Mode and Multimode Fiber Amplifier Arrays for Propagation Through Atmospheric Turbulence [J].

Jolivet, Veronique ;

Bourdon, Pierre ;

Bennai, Baya ;

Lombard, Laurent ;

Goular, Didier ;

Pourtal, Emilie ;

Canat, Guillaume ;

Jaouen, Yves ;

Moreau, Bernard ;

Vasseur, Olivier .

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 2009, 15 (02) :257-268

[3]

Liu L., 2007, P SOC PHOTO-OPT INS, V6708

[4]

LIU L, 2005, P SOC PHOTO-OPT INS, V5895

[5] Coherent beam combination with single frequency dithering technique [J].

Ma, Yanxing ;

Zhou, Pu ;

Wang, Xiaolin ;

Ma, Haotong ;

Xu, Xiaojun ;

Si, Lei ;

Liu, Zejin ;

Zhao, Yijun .

OPTICS LETTERS, 2010, 35 (09) :1308-1310

[6] MULTIDITHER PRINCIPLE IN ADAPTIVE OPTICS [J].

OMEARA, TR .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1977, 67 (03) :306-315

[7] First experimental demonstration of self-synchronous phase locking of an optical array [J].

Shay, T. M. ;

Benham, Vincent ;

Baker, J. T. ;

Ward, Benjamin ;

Sanchez, Anthony D. ;

Culpepper, Mark A. ;

Pilkington, D. ;

Spring, Justin ;

Nelson, Douglas J. ;

Lu, Chunte A. .

OPTICS EXPRESS, 2006, 14 (25) :12015-12021

[8] Theory of electronically phased coherent beam combination without a reference beam [J].

Shay, Thomas M. .

OPTICS EXPRESS, 2006, 14 (25) :12188-12195

[9] First experimental demonstration of phase locking of optical fiber arrays by RF phase modulation [J].

Shay, TM ;

Benham, V .

FREE SPACE LASER COMMUNICATIONS IV, 2004, 5550 :313-319

[10] Comparison and validation of point spread models for imaging in natural waters [J].

Hou, Weilin ;

Gray, Deric J. ;

Weidemann, Alan D. ;

Arnone, Robert A. .

OPTICS EXPRESS, 2008, 16 (13) :9958-9965

← 1 2 →