All-fiber phase-control-free coherent-beamcombining toward femtosecond-pulse amplification
All-fiber phase-control-free coherent-beamcombining toward femtosecond-pulse amplification
复制标题
用于飞秒脉冲放大的全光纤无相位控制相干光束合成
DOI：
10.1016/j.optcom.2016.08.029
复制
发表时间：
2017
影响因子：
2.4
通讯作者：
Masashi Yoshikawa
中科院分区：
文献类型：
--
作者：
Yuta Kambayashi;Minoru Yoshida;Toshiki Sasaki;Masashi Yoshikawa
由于光纤放大器的非线性效应，我们目前的工作是开发一种全光纤相干光束组合系统，以实现超越脉冲能量限制的高能量飞秒脉冲光纤激光器。利用光纤进行相干束合并是一项技术难题，因为光纤中的相位和偏振会因干扰而波动。我们开发了一种不需要控制光相位和偏振的全光纤无源CBC系统，实现了95.9%的光束组合效率。无源CBC系统的综合输出变化在全宽范围内小于1.0%。
Our present work is to develop an all-fiber coherent-beam-combining system that achieves a high-energy femtosecond-pulse fiber laser beyond pulse energy limits due to the nonlinear effects in fiber amplifiers. Coherent-beam combining (CBC) using optical fibers is technically difficult because the optical phases and the polarizations in the optical fibers fluctuate due to disturbances. We developed an all-fiber passive CBC system that does not need to control optical phases and polarizations that achieved a beam-combining efficiency of 95.9%. The combined output changes of the passive CBC system are the less than 1.0% in full width.