We report on two architectures for obtaining watt-level single mode output from a fiber laser at 2150 nm, one based on a diode-pumped Thulium fiber laser, and another based on a Thulium fiber laser pumped Holmium fiber laser. We observe temporal instability in the diode-pumped Tm-doped fiber system when operating at 2150 nm, with unstable pulsing, and a maximum power of 0.935 W. The Ho-doped fiber system pumped by Tm laser operating at the same 2150 nm wavelength shows periodic pulsing at a fixed rate of 21.25 MHz. Pulsing was observed as soon as the laser threshold was reached. Both laser systems operated in a single spatial mode.
Watt-level 2150 nm fiber laser
Laser Technology for Defense and Security XVII ; 2022 ; Orlando,Florida,United States
Proc. SPIE ; 12092
2022-05-30
Conference paper
Electronic Resource
English
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