Abstract

In this manuscript, coherent polarization beam combining of four polarization-maintained fiber amplifiers is demonstrated. In each fiber amplifier, two cascaded fiber amplification stages are used to boost the output power to watt level. The compact and robust single-frequency dithering technique is employed in the active phase-locking of the four laser beams. When the system is in the closed loop, the phase noise can be suppressed effectively for long-time observation. The experimental results show that the combining efficiency of the whole system is as high as 95%.

© 2012 Chinese Optics Letters

Coherent beam combination with single frequency dithering technique

Yanxing Ma, Pu Zhou, Xiaolin Wang, Haotong Ma, Xiaojun Xu, Lei Si, Zejin Liu, and Yijun Zhao
Opt. Lett. 35(9) 1308-1310 (2010)

Coherent beam combining of fiber lasers using a CDMA-based single-frequency dithering technique

Min Jiang, Rongtao Su, Zhixin Zhang, Yanxing Ma, Xiaolin Wang, and Pu Zhou
Appl. Opt. 56(15) 4255-4260 (2017)

Coherent beam combination of 1.08 kW fiber amplifier array using single frequency dithering technique

Yanxing Ma, Xiaolin Wang, Jinyong Leng, Hu Xiao, Xiaolin Dong, Jiajian Zhu, Wenbo Du, Pu Zhou, Xiaojun Xu, Lei Si, Zejin Liu, and Yijun Zhao
Opt. Lett. 36(6) 951-953 (2011)

Influence of perturbative phase noise on active coherent polarization beam combining system

Pengfei Ma, Pu Zhou, Xiaolin Wang, Yanxing Ma, Rongtao Su, and Zejin Liu
Opt. Express 21(24) 29666-29678 (2013)

Coherent polarization beam combination of four mode-locked fiber MOPAs in picosecond regime

Pengfei Ma, Rumao Tao, Xiaolin Wang, Yanxing Ma, Rongtao Su, and Pu Zhou
Opt. Express 22(4) 4123-4130 (2014)