Author:
Huang Shan,Wu Wenjie,Li Fengyun,Li Yue,Li Yuwei,Tao Rumao,Feng Xi,Li Min,Shen Benjian,Wang Jianjun,Liu Yu
Abstract
CTFBGs with different center wavelengths are cascaded to broad the bandwidth to 20 nm (FWHM). The homemade duplexed CTFBG assists a 20.88 kW output of single fiber laser system with 18.6 dB of SRS suppression.