1.5-MHz repetition rate passively Q-switched Nd: YVO4 laser based on WS2 saturable absorber

doi:10.1088/1674-1056/26/4/044203

中国物理B ›› 2017, Vol. 26 ›› Issue (4): 44203-044203.doi: 10.1088/1674-1056/26/4/044203

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

1.5-MHz repetition rate passively Q-switched Nd: YVO₄ laser based on WS₂ saturable absorber

Xi Wang(王茜), Lu Li(李璐), Jin-Ping Li(李金萍), Yong-Gang Wang(王勇刚)

1 State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China;
3 School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China

收稿日期:2016-09-23 修回日期:2016-11-13 出版日期:2017-04-05 发布日期:2017-04-05
通讯作者: Yong-Gang Wang E-mail:chinawygxjw@snnu.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 61378024).

1.5-MHz repetition rate passively Q-switched Nd: YVO₄ laser based on WS₂ saturable absorber

Xi Wang(王茜)^1,2, Lu Li(李璐)^1,2, Jin-Ping Li(李金萍)³, Yong-Gang Wang(王勇刚)^1,3

1 State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China;
3 School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China

Received:2016-09-23 Revised:2016-11-13 Online:2017-04-05 Published:2017-04-05
Contact: Yong-Gang Wang E-mail:chinawygxjw@snnu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 61378024).

摘要/Abstract

摘要： A transmission-type tungsten disulfide (WS₂)-based saturable absorber (SA) is fabricated and applied to passively Q-switched Nd:YVO₄ laser. The WS₂ nanosheets are deposited on a quartz substrate by the vertical evaporation method. By inserting the WS₂ SA into the plano-concave laser cavity, we achieve 153-ns pulses with an average output power of 1.19 W at 1064 nm. To the best of our knowledge, both of them are the best results among those obtained by the Q-switched solid-state lasers with WS₂-based absorbers. The repetition rate ranges from 1.176 MHz to 1.578 MHz. As far as we know, it is the first time that MHz level Q-switched pulses have been generated in all solid state lasers based on low-dimensional materials so far.

关键词: Q-switched lasers, solid-state lasers, nonlinear optical materials

Abstract: A transmission-type tungsten disulfide (WS₂)-based saturable absorber (SA) is fabricated and applied to passively Q-switched Nd:YVO₄ laser. The WS₂ nanosheets are deposited on a quartz substrate by the vertical evaporation method. By inserting the WS₂ SA into the plano-concave laser cavity, we achieve 153-ns pulses with an average output power of 1.19 W at 1064 nm. To the best of our knowledge, both of them are the best results among those obtained by the Q-switched solid-state lasers with WS₂-based absorbers. The repetition rate ranges from 1.176 MHz to 1.578 MHz. As far as we know, it is the first time that MHz level Q-switched pulses have been generated in all solid state lasers based on low-dimensional materials so far.

Key words: Q-switched lasers, solid-state lasers, nonlinear optical materials

中图分类号: (Q-switching)

42.60.Gd

42.55.Xi (Diode-pumped lasers) 42.70.Nq (Other nonlinear optical materials; photorefractive and semiconductor materials)

王茜, 李璐, 李金萍, 王勇刚. 1.5-MHz repetition rate passively Q-switched Nd: YVO₄ laser based on WS₂ saturable absorber[J]. 中国物理B, 2017, 26(4): 44203-044203.

Xi Wang(王茜), Lu Li(李璐), Jin-Ping Li(李金萍), Yong-Gang Wang(王勇刚). 1.5-MHz repetition rate passively Q-switched Nd: YVO₄ laser based on WS₂ saturable absorber[J]. Chin. Phys. B, 2017, 26(4): 44203-044203.

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1.5-MHz repetition rate passively Q-switched Nd: YVO₄ laser based on WS₂ saturable absorber

1.5-MHz repetition rate passively Q-switched Nd: YVO₄ laser based on WS₂ saturable absorber

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