掺铒铌酸锂调Q激光器的设计和分析

Design and Analysis of Q-switched Er:LiNbO_3 Waveguide Lasers

本文设计了用 Mach- Zehnder干涉型调制开关作为调 Q开关的掺铒铌酸锂 (Er:L i Nb O3 )调 Q波导激光器 ,并进行分析。发现激光器输出功率可达 1.5 k W以上 ;比较了泵浦光波长为 980 nm和 1480 nm时的输出功率和脉冲宽度的情况 ,研究了腔长变化对激光器输出特性的影响 ,发现用 1480 nm光泵浦时阈值较低 ,但用 980

We design a monolithic Q switched Er:LiNbO 3 waveguide laser with up to 1.5 kW higher peak power using a folded Mach Zehnder intensity modulator as the Q switch.The performance of 1 480 nm pumped waveguide lasers and 980 nm pumped waveguide lasers is compared.We find,that the latter have higher peak power and narrower pulse width though have higher threshold pump power.