High-efficiency CW and passively Q-switched operation of a 2050 nm L-shaped Tm3+:Y2O3 ceramic laser in-band fiber-laser pumped at 1670 nm

A Tm 3+ :Y 2 O 3 ceramic laser with the L-shaped cavity in-band pumped by a fiber laser at 1670 nm was studied in the CW and passively Q-switched regimes. The CW laser was tunable in the range between 2046 and 2054 nm. The output power reached up to 4.9 W and the average slope efficiency was 75% in...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2021-05, Vol.127 (5), Article 77
Main Authors: Antipov, O. L., Getmanovskiy, Yu. A., Dobrynin, A. A., Huang, H. T., Shen, D. Y., Wang, J., Balabanov, S. S.
Format: Article
Language:English
Subjects:
Applied physics
Ceramic fibers
Engineering
Fiber lasers
Lasers
Optical Devices
Optics
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Pulse duration
Pulse repetition rate
Q switched lasers
Quantum Optics
Rapid Communication
Tunable lasers
Yttrium oxide
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Summary:A Tm 3+ :Y 2 O 3 ceramic laser with the L-shaped cavity in-band pumped by a fiber laser at 1670 nm was studied in the CW and passively Q-switched regimes. The CW laser was tunable in the range between 2046 and 2054 nm. The output power reached up to 4.9 W and the average slope efficiency was 75% in the high-quality single-transverse-mode beam The highest CW output power in the multi-transverse-mode beam was 12 W. A Cr 2+ :ZnSe saturable absorber was used to achieve the Q-switched operation at 2051 nm with the average power of up to 1.3 W in the single transverse mode, at the pulse repetition rate of 2–10 kHz and the pulse width of 80–150 ns.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-021-07627-4