Diode-End-Pumped Narrow-Linewidth Tm:YLF Laser with a Volume Bragg Grating and Double Fabry–Pérot Etalons

A 2 μm laser has important applications and prospects in various fields such as LIDAR, material processing, environmental monitoring, and space communication, as well as fundamental researches. Being designed for the room-temperature operation, our Tm:YLF laser with L flat concave resonator incorpor...

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Bibliographic Details
Published in:Journal of Russian laser research 2021-03, Vol.42 (2), p.171-174
Main Authors: Guanlong, Zhou, Yue, Li, Ruiyang, Hu, Jingliang, Liu, Xinyu, Chen
Format: Article
Language:English
Subjects:
Bragg gratings
Environmental monitoring
Etalons
Lasers
Microwaves
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
RF and Optical Engineering
Room temperature
Semiconductor lasers
Space communication
YLF lasers
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Summary:A 2 μm laser has important applications and prospects in various fields such as LIDAR, material processing, environmental monitoring, and space communication, as well as fundamental researches. Being designed for the room-temperature operation, our Tm:YLF laser with L flat concave resonator incorporates a laser-diode end-pump setup, in which a volume Bragg grating and double Fabry–Pérot etalons serve as a line-width limiting element. With an injection power of 49.58 W, a maximum output power of 17.78 W is achieved with a center wavelength of 1908.55 nm and a linewidth limited from 2 to 0.1 nm. A corresponding slope efficiency of 42.89% and an optical–optical conversion efficiency of 35.86% are obtained.
ISSN:1071-2836
1573-8760
DOI:10.1007/s10946-021-09946-5