A passively mode locked thulium doped fiber laser using bismuth telluride deposited multimode interference

M. Jung, J. Lee, W. Song, Y. L. Lee, J. H. Lee, W. Shin

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We proposed a multimode interference (MMI) fiber based saturable absorber using bismuth telluride at ∼2 μm region. Our MMI based saturable absorber was fabricated by fusion splicing with single mode fiber and null core fiber. The MMI functioned as both wavelength fixed filter and saturable absorber. The 3 dB bandwidth and insertion loss of MMI were 42 nm and 3.4 dB at wavelength of 1958 nm, respectively. We have also reported a passively mode locked thulium doped fiber laser operating at a wavelength of 1958 nm using a multimode interference. A temporal bandwidth of ∼46 ps was experimentally obtained at a repetition rate of 8.58 MHz.

Original languageEnglish
Article number055103
JournalLaser Physics Letters
Volume13
Issue number5
DOIs
StatePublished - May 2016

Keywords

  • fibre lasers
  • mode locking
  • modulation
  • tuning

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