Chinese Optics Letters, 2020, 18 (1): 011404, Published Online: Feb. 10, 2020
Real-time phase measurement and correction of dynamic multimode beam using a single spatial light modulator Download: 647次
Abstract
In this Letter, a novel system for adaptively correcting the phase of a dynamic multimode beam is proposed. While using merely one spatial light modulator, the phase measurement of the first-order diffraction pattern and the correction of the zeroth diffraction order are simultaneously realized. The real-time experimental result is obtained at a control rate of 10 Hz. The power-in-the-bucket value is improved from 38.5% to 61.8%, even with fundamental mode content that is consistently below 30%. To the best of our knowledge, this is the first implementation of real-time adaptive correction of the entire multimode beam.
Kun Xie, Wenguang Liu, Qiong Zhou, Zongfu Jiang, Fengjie Xi, Xiaojun Xu. Real-time phase measurement and correction of dynamic multimode beam using a single spatial light modulator[J]. Chinese Optics Letters, 2020, 18(1): 011404.