Related Experiment Video
Updated: May 29, 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
Efficient, polarised, gain-switched operation of a Tm-doped fibre laser
Nikita Simakov1, Alex Hemming, Shayne Bennetts
1Electro-Optic Technology Group, Electronic Warfare and Radar Division, Defence Science and Technology Organisation – Edinbugh, South Australia 5111, Australia. nikita.simakov@dsto.defence.gov.au
Abstract:
We present a monolithic, robustly polarised thulium fibre laser which produces pulses with 25 ns duration and energy of up to 35 µJ. A pulsed 1.55 μm source was used to gain switch the laser at repetition rates of up to 300 kHz, producing average powers of up to 8 W at 2.044 µm. To the best of our knowledge this is the highest power gain-switched thulium fibre laser and it is also the first with a linearly polarised output. The large repetition rate, pulse energy and average power will enable efficient energy extraction from a large mode-area, polarisation maintaining thulium fibre amplifier.
