Coherent beam combination is an effective way to develop high-power lasers with high beam quality and high brightness. Coherent combination of six solid-state lasers based on the technique of mutual injection phase locking by using the natural coherent combination property of corner cube is first investigated. The coherent combination with 15.3 J of output energy, 1.7 mrad of divergent angle is obtained, and the combining efficiency is as high as 95.6% at 10 Hz and 85 A. The far-field profile is flattened protuberance.
© 2013 Optical Society of America
Lasers and Laser Optics
Original Manuscript: July 25, 2013
Revised Manuscript: October 18, 2013
Manuscript Accepted: October 18, 2013
Published: November 26, 2013
Yong Cheng, Xu Liu, Qiang Wan, Mengzhen Zhu, Chaowei Mi, Chaoyong Tan, Shangfang Wei, and Xia Chen, "Mutual injection phase locking coherent combination of solid-state lasers based on corner cube," Opt. Lett. 38, 5150-5152 (2013)