High efficiency single-longitudinal-mode resonantly-pumped Ho:GdTaO4 laser at 2068nm | Zendy

Tongyu Dai | Zendy; Shuangxing Guo | Zendy; Xiaoming Duan | Zendy; Renqin Dou | Zendy; Qingli Zhang | Zendy

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High efficiency single-longitudinal-mode resonantly-pumped Ho:GdTaO₄ laser at 2068nm

Author(s) -

Tongyu Dai,

Shuangxing Guo,

Xiaoming Duan,

Renqin Dou,

Qingli Zhang

Publication year - 2019

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.27.034204

Subject(s) - longitudinal mode , optics , slope efficiency , laser , materials science , fiber laser , faraday rotator , faraday effect , continuous wave , wavelength , amplifier , thulium , single mode optical fiber , laser power scaling , optoelectronics , physics , magnetic field , cmos , quantum mechanics

Based on Faraday effect we demonstrate a thulium fiber pumped continuous-wave single-longitudinal-mode laser with a new Ho:GdTaO 4 crystal. By inserting a faraday rotator and a half-wave plate into the laser cavity, the single-longitudinal-mode output power of 392 mW at wavelength of 2068.33 nm was obtained in unidirectional Ho:GdTaO 4 ring laser, corresponding to a slope efficiency of 60.2% respect to the absorbed pump power. Furthermore, utilizing the Ho:GdTaO 4 power amplifier, the maximum single-longitudinal- mode output power of 1.02 W was achieved.

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