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Chin. Opt. Lett.
 Home  List of Issues    Issue 11 , Vol. 03 , 2005    Contrastive study of two SESAMs for passive mode-locking in Nd:YVO4 laser with low pump power


Contrastive study of two SESAMs for passive mode-locking in Nd:YVO4 laser with low pump power
Yang Liu1, Liqun Sun1, Yonggang Wang2;3, Qian Tian1, Xiaoyu Ma2, Zhigang Zhang3
1State Key laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084
2Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083
3Ultrafast Laser Laboratory, School of Precision Instrument and Optoelectronics Engineering, University of Tianjin, Tianjin 300072

Chin. Opt. Lett., 2005, 03(11): pp.644-644-

DOI:
Topic:Lasers and laser optics
Keywords(OCIS Code): 140.4050  160.6000  140.3580  

Abstract
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.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Received:2005/6/20
Accepted:
Posted online:

Get Citation: Yang Liu, Liqun Sun, Yonggang Wang, Qian Tian, Xiaoyu Ma, Zhigang Zhang, "Contrastive study of two SESAMs for passive mode-locking in Nd:YVO4 laser with low pump power," Chin. Opt. Lett. 03(11), 644-644-(2005)

Note: Y. Liu's e-mail address is yang-liu03@mails.tsinghua.edu.cn.



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