• 文献标题:   Active-passive Q-switched fiber laser based on graphene microfiber
  • 文献类型:   Article
  • 作  者:   LI DD, ZHU JW, JIANG M, LI D, WU H, HAN J, SUN ZP, REN ZY
  • 作者关键词:  
  • 出版物名称:   APPLIED PHYSICS BLASERS OPTICS
  • ISSN:   0946-2171 EI 1432-0649
  • 通讯作者地址:   Northwest Univ
  • 被引频次:   3
  • DOI:   10.1007/s00340-019-7312-y
  • 出版年:   2019

▎ 摘  要

We report an active-passive Q-switched laser based on graphene-covered microfiber modulator. The graphene-covered microfiber not only serves as a passive saturable absorber in a single laser cavity, but also can be used as an all-optical modulation device to synchronize two pulses generated from different wavelengths. The laser can not only actively change the output frequency of the Q-switched pulse to achieve the repetition frequency reduction, but also compress the pulse and increase the peak power of the output pulse. We successfully achieve the output of the active-passive Q-switched pulse using this fiber laser with a repetition rate from 41.1 kHz to 50.5 kHz. The fiber laser has potential applications in simultaneous output of multi-wavelength pulse.