Comparative study of passively Q-switched c-cut Nd:YVO4/Nd:YAG lasers based on CVD graphene and controlled operation

Fuqiang Jia*, Pei Liu, Kang Li, Hao Chen, Yongjie Cheng, Zhiping Cai, Nigel Copner

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, a comparative study of passively Q-switched c-cut Nd:YVO4 and Nd:YAG lasers using four different layers CVD graphene as saturable absorber are demonstrated experimentally for the first time. Moreover, it is successful to accurately control the frequency of repetition rates of the CVD graphern passively Q-switched lasers by pulsed pump. The impacts of laser materials, layers of CVD graphene and cavity length on output parameters are investigated intensively as well, the result shows that the c-cut Nd:YVO4 is a promising laser media compared with Nd:YAG for passively Q-switched lasers based on CVD graphene, as it has better performances in pulse width, pulse energy and peak power. A useful and cost-effective way to generate stable pulsed lasers by CVD graphene or other novel saturable materials are demonstrated.

Original languageEnglish
Pages (from-to)102-110
Number of pages9
JournalOptics Communications
Volume395
DOIs
Publication statusPublished - 15 Jul 2017
Externally publishedYes

Keywords

  • c-cut Nd:YVO
  • CVD grapheme
  • Q-switching
  • Solid state laser

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