Active-passive Q-switched fiber laser based on graphene microfiber

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • Duidui Li
  • Jiwen Zhu
  • Man Jiang
  • Diao Li
  • Hao Wu
  • Jing Han
  • Zhipei Sun

  • Zhaoyu Ren

Research units

  • Northwest University China

Abstract

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.

Details

Original languageEnglish
Article number203
Number of pages6
JournalAPPLIED PHYSICS B-LASERS AND OPTICS
Volume125
Issue number11
Publication statusPublished - Nov 2019
MoE publication typeA1 Journal article-refereed

    Research areas

  • SATURABLE ABSORBER, PULSE-GENERATION, RAMAN-SPECTROSCOPY, OPERATION, TM

ID: 38028942