Broadly tunable femtosecond mode-locking in a Tm:KYW laser near 2µm

A.A. Lagatsky, Stephane Calvez, J.A. Gupta, C. T. A. Brown, Martin Dawson, W. Sibbett

Research output: Contribution to journalArticlepeer-review


Efficient mode-locking in a Tm:KY(WO4)2 laser is demonstrated by using InGaAsSb quantum-well SESAMs. Self-starting ultrashort pulse generation was realized in the 1979-2074 nm spectral region. Maximum average output power up to 411 mW was produced around 1986 nm with the corresponding pulse duration and repetition rate of 549 fs and 105 MHz respectively. Optimised pulse durations of 386 fs were produced with an average power of 235 mW at 2029 nm.
Original languageEnglish
Pages (from-to)9995-10000
Number of pages6
JournalOptics Express
Issue number10
Publication statusPublished - 6 May 2011


  • optics
  • femtosecond mode-locking
  • lasers


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