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

Duidui Li, Jiwen Zhu, Man Jiang, Diao Li, Hao Wu, Jing Han, Zhipei Sun, Zhaoyu Ren

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

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.

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

Keywords

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

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