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Graphene mode-locked Tm,Ho-codoped crystalline garnet laser producing 70-fs pulses near 2.1 µm

  • Yongguang Zhao
  • , Weidong Chen
  • , Li Wang
  • , Yicheng Wang
  • , Zhongben Pan
  • , Xiaojun Dai
  • , Hualei Yuan
  • , Huaqiang Cai
  • , Yan Zhang
  • , Ji Eun Bae
  • , Tae Gwan Park
  • , Fabian Rotermund
  • , Pavel Loiko
  • , Josep Maria Serres
  • , Xavier Mateos
  • , Deyuan Shen
  • , Uwe Griebner
  • , Valentin Petrov

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Bilayer graphene synthesized by chemical vapor deposition is successfully applied as a saturable absorber (SA) for the passive mode-locking of a Tm,Ho:CLNGG laser at 2093nm. Near transform-limited pulses as short as 70 fs, i.e., 10 optical cycles, are produced at a 89 MHz repetition rate with 69 mW average output power. To the best of our knowledge, these are the shortest pulses ever reported from graphene-SA mode-locked Tm, or Ho-lasers in the 2 µm spectral region, including bulk and fiber lasers.
Original languageEnglish
Pages (from-to)2593-2600
Number of pages8
JournalOSA Continuum
Volume2
Issue number9
DOIs
StatePublished - Sep 15 2019
Externally publishedYes

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