A high power Q-switched Ho YAG laser pumped by two Tm-fiber lasers

Fang Chen; Meng Cai; Yuansheng Zhang; Bing Li

doi:10.1117/12.2521126

12 March 2019 A high power Q-switched Ho YAG laser pumped by two Tm-fiber lasers

Fang Chen, Meng Cai, Yuansheng Zhang, Bing Li

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Proceedings Volume 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application; 110233P (2019) https://doi.org/10.1117/12.2521126
Event: Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 2018, Xi'an, China

Abstract

High efficient and high power 2μm room temperature Ho:YAG laser by two Tm-fiber lasers at 1.91μm was demonstrated. A maximum continuous wave output power of 55.6W was generated, corresponding to the slope efficiency of 61.3% with respect to the incident pump power. At 18kHz of the pulsed repetition frequency, we achieved a less than 31ns FWHM pulse, with the maximum output energy per pulse of 3.0mJ. A beam quality of M 2 <2.4 was achieved.

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Fang Chen, Meng Cai, Yuansheng Zhang, and Bing Li "A high power Q-switched Ho YAG laser pumped by two Tm-fiber lasers", Proc. SPIE 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 110233P (12 March 2019); https://doi.org/10.1117/12.2521126

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KEYWORDS

Q switched lasers

Continuous wave operation

High power lasers

Holmium

Laser applications

Pulsed laser operation

Crystals

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