Kilowatt-level spectrum-programmable multi-wavelength fiber laser  

作　　者：Yanzhao Ke Jiangming Xu Jun Ye Junhong He Junrui Liang Yang Zhang Yidong Guo Lei Du Jinyong Leng Pu Zhou Lei Si 

机构地区：[1]College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha,China [2]Nanhu Laser Laboratory,National University of Defense Technology,Changsha,China [3]Hunan Provincial Key Laboratory of High Energy Laser Technology,National University of Defense Technology,Changsha,China

出　　处：《High Power Laser Science and Engineering》2024年第6期55-64,共10页高功率激光科学与工程(英文版)

基　　金：supported by the National Natural Science Foundation of China(No.62305391);the Scientific Fund of the National University of Defense Technology(No.22-061);the Postgraduate Scientific Research Innovation Project of Hunan Province(No.CX20240126)

摘　　要：This study demonstrates a kilowatt-level, spectrum-programmable, multi-wavelength fiber laser(MWFL) with wavelength, interval and intensity tunability. The central wavelength tuning range is 1060–1095 nm and the tunable number is controllable from 1 to 5. The wavelength interval can be tuned from 6 to 32 nm and the intensity of each channel can be adjusted independently. Maximum output power up to approximately 1100 W has been achieved by master oscillator power amplifier structures. We also investigate the wavelength evolution experimentally considering the difference of gain competition, which may give a primary reference for kW-level high-power MWFL spectral manipulation. To the best of our knowledge, this is the highest output power ever reported for a programmable MWFL. Benefiting from its high power and flexible spectral manipulability, the proposed MWFL has great potential in versatile applications such as nonlinear frequency conversion and spectroscopy.

关 键 词：high-power fiber laser MULTI-WAVELENGTH spectrum programmable laser 

分 类 号：TN248[电子电信—物理电子学]