Related Experiment Video
Updated: Jun 1, 2026
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
Broadly tunable femtosecond mode-locking in a Tm:KYW laser near 2 μm
A A Lagatsky1, S Calvez, J A Gupta
1School of Physics and Astronomy, University of St. Andrews, St. Andrews, KY16 9SS, UK. aal2@st-andrews.ac.uk
Abstract:
Efficient mode-locking in a Tm:KY(WO(4))(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.
