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Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
12 W Q-switched Er:ZBLAN fiber laser at 2.8 μm
Shigeki Tokita1, Masanao Murakami, Seiji Shimizu
1Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan. tokita@laser.kuicr.kyoto‑u.ac.jp
Abstract:
A diode-pumped, actively Q-switched 2.8 μm fiber laser oscillator with an average output power of more than 12 W has been realized through the use of a 35 μm core erbium-doped ZBLAN fiber and an acousto-optic modulator; to our knowledge, this is the first 3 μm pulsed fiber laser in the 10 W class. Pulse energy up to 100 μJ and pulse duration down to 90 ns, corresponding to a peak power of 0.9 kW, were achieved at a repetition rate of 120 kHz.
