Fundamentally mode-locked, femtosecond waveguide oscillators with multi-gigahertz repetition frequencies up to 15 GHz

Alexander A. Lagatsky, Amol Choudhary*, Pradeesh Kannan, David P. Shepherd, Wilson Sibbett, Christian T. A. Brown

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)
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Abstract

We demonstrate passively mode-locked Yb3+-doped glass waveguide lasers in a quasi-monolithic configuration with a maximum pulse repetition frequency up to 15.2 GHz. A semiconductor saturable absorber mirror (SESAM) is used to achieve stable mode-locking around 1050 nm with pulse durations as short as 811 fs and an average power up to 27 mW. Different waveguide samples are also employed to deliver pulses with repetition rates of 4.9 GHz, 10.4 GHz and 12 GHz with an average power of 32 mW, 60 mW and 45 mW, respectively. The group velocity dispersion control in the cavity is provided by changing the gap between the SESAM and the waveguide end-face to facilitate a soliton mode-locking regime. (C) 2013 Optical Society of America

Original languageEnglish
Pages (from-to)19608-19614
Number of pages7
JournalOptics Express
Volume21
Issue number17
DOIs
Publication statusPublished - 26 Aug 2013

Keywords

  • Fibre lasers
  • Carbon nanotubes
  • Compact
  • Locking
  • Jitter
  • Comb

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