Affiliation:
1. University of Chinese Academy of Sciences
2. Institute of Optical Physics and Engineering Technology Qilu Zhongke
Abstract
In this paper, a fast steering mirror (FSM) stabilization system is proposed for a refraction displacement pulse sequence beam-combining (PSBC) technique. The FSM system can effectively suppress pointing jitter in the PSBC and achieve high beam-quality laser output. A proof-of-principle experiment on the PSBC with FSM is performed with three ∼100W pulsed beams. The experimental results indicate that a combined output power of 302.5 W is achieved, corresponding to a high combining efficiency of 98.7%. Meanwhile, excellent pointing stability with root mean square pointing jitter = 4.2 µrad is confirmed with a beam quality β of 2.
Funder
Strategic High Technology Innovation Fund of the Chinese Academy of Sciences
Technical Institute of Physics Chemistry (TIPC) Director’s Fund