5 October 2017 Experimental investigation of the photodarkening induced core laser leakage in a 3kW co-pumping fiber amplifier
Author Affiliations +
Abstract
We demonstrated photodarkening induced core laser leakage phenomenon in the long term operation of a 3 kW copumping fiber amplifier. Output power perturbation of 4~6 minutes period was observed in the 6 hours maximum power operation. Despite the perturbation, the maximum power also drops from 3 kW to 2.65 kW due to the leakage of the core laser. This indicates that the co-pumping scheme may not be suitable to achieve high power fiber laser with long term output stability. We also provide a solution by adopting the counter-pumping scheme that shows very stable output power in the 1-hour maximum power operation test.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lingchao Kong, Lingchao Kong, Miao Li, Miao Li, Jinyong Leng, Jinyong Leng, Xiaolin Wang, Xiaolin Wang, Pu Zhou, Pu Zhou, Xiaojun Xu, Xiaojun Xu, Jinbao Chen, Jinbao Chen, Zongfu Jiang, Zongfu Jiang, } "Experimental investigation of the photodarkening induced core laser leakage in a 3kW co-pumping fiber amplifier", Proc. SPIE 10436, High-Power Lasers: Technology and Systems, Platforms, and Effects, 104360N (5 October 2017); doi: 10.1117/12.2277498; https://doi.org/10.1117/12.2277498
PROCEEDINGS
4 PAGES


SHARE
Back to Top