Selective generation of individual Raman Stokes lines using dissipative soliton resonance pulses  

作　　者：He Xu Sheng-Ping Chen Zong-Fu Jiang 

机构地区：[1]College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,China [2]State Key Laboratory of Pulsed Power Laser Technology,Changsha 410073,China [3]Hunan Provincial Key Laboratory of High Energy Laser Technology,Changsha 410073,China

出　　处：《High Power Laser Science and Engineering》2019年第3期60-66,共7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 (NSFC) (No. 61235008);the National High Technology Research and Development Program of China (No. 2015AA021101)

摘　　要：Pumped by rectangular-shaped dissipative soliton resonance(DSR)pulses at 1030 nm,selective excitations of Raman Stokes lines of up to third order with extinction ratios of 8 d B and fifth order with extinction ratios of 4 dB are demonstrated experimentally.The rectangular DSR pulses are generated from a dual-amplifier ytterbium-doped figureof-eight mode-locked laser constructed using all 10μm-core-diameter large-mode-area fibers.By varying the two pump powers,the peak power of the output DSR pulses can be continuously tuned from 10 W to 100 W and from 30 W to200 W,respectively,for two different lengths of the nonlinear amplifying loop mirror inside the cavity.High-frequency components are found to correspond to parts of the pulse in the trailing edge when two bandpass filters are used to separate the propagated pulse.Consequently,it provides an all-fiber technique to achieve selective excitation of the Raman shift by adjusting the peak power of the DSR pulse.Pumped by rectangular-shaped dissipative soliton resonance(DSR) pulses at 1030 nm, selective excitations of Raman Stokes lines of up to third order with extinction ratios of 8 d B and fifth order with extinction ratios of 4 d B are demonstrated experimentally. The rectangular DSR pulses are generated from a dual-amplifier ytterbium-doped figureof-eight mode-locked laser constructed using all 10 μm-core-diameter large-mode-area fibers. By varying the two pump powers, the peak power of the output DSR pulses can be continuously tuned from 10 W to 100 W and from 30 W to200 W, respectively, for two different lengths of the nonlinear amplifying loop mirror inside the cavity. High-frequency components are found to correspond to parts of the pulse in the trailing edge when two bandpass filters are used to separate the propagated pulse. Consequently, it provides an all-fiber technique to achieve selective excitation of the Raman shift by adjusting the peak power of the DSR pulse.

关 键 词：MODE-LOCKED laser RAMAN CONVERSION fiberized system 

分 类 号：TN2[电子电信—物理电子学]