8 April 2022 Linearly polarized 2044-nm pulsed laser generation in Ho:YAG active medium
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Abstract

We demonstrated the efficient generation of a linearly polarized Ho:YAG laser pumped by a thulium fiber laser. Independent of the pumping power and without utilizing any dispersive optical element, the output radiation remained stable with a high degree of linear polarization. The output with 2044 nm wavelength and 0.12 nm bandwidth was measured. In the free-running generation, with respect to the incident pump power, we recorded more than 9 W of output power with 59% slope efficiency. In addition, in the pulsed generation, we obtained more than 2.2 mJ pulses with 50 ns time duration, and 44 kW peak power.

© 2022 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2022/$28.00 © 2022 SPIE
Lukasz Gorajek and Jacek Kwiatkowski "Linearly polarized 2044-nm pulsed laser generation in Ho:YAG active medium," Optical Engineering 61(4), 046104 (8 April 2022). https://doi.org/10.1117/1.OE.61.4.046104
Received: 14 October 2021; Accepted: 23 March 2022; Published: 8 April 2022
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KEYWORDS
Pulsed laser operation

Fiber lasers

Mirrors

Polarization

Resonators

YAG lasers

Bragg cells

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