Simultaneous Q -switching of a Tm3+:ZBLAN fiber laser at 1.9μm m and 2.3μm m using graphene

Chenglai Jia, Bhavin J. Shastri, Paul R. Prucnal, Mohammed Saad, Lawrence R. Chen

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


We demonstrate a passively Q -switched, dual-band Tm3+:ZBLAN fiber laser operating simultaneously around 1895 and 2315 nm using bidirectional pumping at 795 nm and a graphene saturable absorber. The Q -switched pulse trains at 1895 and 2315 nm have a synchronized repetition rate from 10.8 to 25.2 kHz with pulse durations as short as 4.5 and 4.9μm, respectively.

Original languageEnglish (US)
Article number7812618
Pages (from-to)405-408
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number4
StatePublished - Feb 15 2017

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


  • Q-switched lasers
  • Thulium-doped ZBLAN fiber
  • fiber lasers
  • graphene
  • mid-infrared lasers


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