A 2 kW single-mode fiber laser with two cascade home-made cladding light strippers（CLSs） has been demonstrated by employing bidirectional-pump scheme.2.009 k W signal power is obtained when pump power is 2.63 kW and the slope efficiency is 76.6%.Raman Stokes light is less than-47 d B at 2.009 kW even with a 10-m delivery fiber with core/inner cladding diameter of 20 mm/400 mm.The beam quality M²≤1.2 and the spectral FWHM bandwidth is 4.34 nm.There is no transverse mode instability and... 

【文章來源】：光電工程. 2017,44(10)北大核心CSCD

【文章頁數(shù)】：5 頁


本文編號：3441687