Resonantly pumped single-longitudinal-mode Ho:YAG laser

We demonstrated a 1.9-μm-pumped high-efficiency single-longitudinal-mode Ho:YAG laser with intra-cavity etalons for the first time. By inserting the F–P etalons into the laser cavity, single-longitudinal-mode Ho:YAG lasing was achieved at a wavelength of 2081.2 nm. The maximum single-longitudinal-mo...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2016, Vol.122 (1), p.1-5, Article 5
Main Authors: Ju, Y. L., Liu, W., Yao, B. Q., Dai, T. Y., Wu, J., Duan, X. M., Shen, Y. J., Wang, Y. Z.
Format: Article
Language:English
Subjects:
Engineering
Etalons
Laser cavities
Lasers
Lasing
Optical Devices
Optics
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Power efficiency
Pumps
Quantum Optics
Slopes
Wavelengths
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Summary:We demonstrated a 1.9-μm-pumped high-efficiency single-longitudinal-mode Ho:YAG laser with intra-cavity etalons for the first time. By inserting the F–P etalons into the laser cavity, single-longitudinal-mode Ho:YAG lasing was achieved at a wavelength of 2081.2 nm. The maximum single-longitudinal-mode output power of 309 mW was obtained with absorbed pump power of 4.97 W, corresponding to a slope efficiency of 12.77 %. The oscillating wavelength can be tuned (from 2077 to 2081 nm), and single-longitudinal-mode laser is achieved at each wavelength. The M 2 factors of the single-longitudinal-mode Ho:YAG laser in the x and y directions were 1.18 and 1.2, respectively.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-015-6291-x