High Power Single Frequency Tm:Y2O3 Ceramic Laser at 2015 nm

Autor: Xuanxi Li, Manman Ding, Jun Wang, Haotian Wang, Fei Wang, Deyuan Shen, Dingyuan Tang
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: IEEE Photonics Journal, Vol 13, Iss 3, Pp 1-7 (2021)
Druh dokumentu: article
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2021.3073038
Popis: We report on high power, single-frequency operation of a compact Tm:Y2O3 ceramic laser in 2 μm spectral region employing a volume Bragg grating in a simple linear resonator to serve simultaneously as a resonator mirror and mode selector. The home developed laser quality Tm:Y2O3 ceramic sample has a Tm doped concentration of 2 at.% and pumped with a fiber coupled 793 nm laser diode. Up to 1.5 W of CW single frequency output power at 2014.9 nm has been generated, corresponding to a slope efficiency of 37.9% with respect to absorbed pump power. M2 factor of the output beam was measured to be ∼1.03.
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