Contrastive study of two SESAMs for passive mode-locking in Nd:YVO4 laser with low pump power

被引：1
|
作者：
刘阳 [1 ]
孙利群 [1 ]
王勇刚 [2 ]
田芊 [1 ]
马骁宇 [3 ]
张志刚 [4 ]
机构：
[1] State Key laboratory of Precision Measurement Technology and Instruments Tsinghua University Beijing 100084  2. Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 Ultrafast Laser L
来源：
ChineseOpticsLetters | 2005年 / 11期
关键词：
mode; Contrastive study of two SESAMs for passive mode-locking in Nd; Nd;
D O I：
暂无
中图分类号：
TN248 [激光器];
学科分类号：
0803 ; 080401 ; 080901 ;
摘要：
Two semiconductor saturable absorber mirrors (SESAMs), of which one is coated with 50% reflection film on the top and the other is not, were contrastively studied in passively mode-locked solid-state lasers which were pumped by low output power laser diode (LD). Experiments have shown that reducing the modulation depth of SESAM by coating partial reflection film, whose reflectivity is higher than that between SESAM and air interface, is an effective method to get continuous wave (CW) mode-locking instead of Q-switched mode-locking (QML) in low power pumped solid-state lasers. A simple Nd:YVO4 laser pumped by low power LD, in which no water-cooling system was used, could obtain CW mode-locking by the 50% reflector coated SESAM with average output power of ~ 20 mW.
引用
收藏
页码：644 / 646
页数：3
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