Graphene Q-switched Tb:LiYF4 green laser

We report the ð',,-switched operation of a Tb3+-laser for the first time, to the best of our knowledge. The passiveð',,-switching was realized by a 15% Tb:LiYF4 gain medium and a single-layer graphene saturable absorber. An average output power of 744 mW at 544 nm was achieved with slope...

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Bibliographic Details
Published in:Optics letters 2020-05, Vol.45 (9), p.2599-2599
Main Authors: Chen, H, Yao, W, Uehara, H, Yasuhara, R
Format: Article
Language:English
Subjects:
Graphene
Pulse duration
Q switched lasers
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Summary:We report the ð',,-switched operation of a Tb3+-laser for the first time, to the best of our knowledge. The passiveð',,-switching was realized by a 15% Tb:LiYF4 gain medium and a single-layer graphene saturable absorber. An average output power of 744 mW at 544 nm was achieved with slope efficiency of 41%, pulse width of 2.9 µs, and repetition rate of 38.7 kHz. The corresponding pulse energy and peak power were calculated to be 19.2 µJ and 6.6 W, respectively.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.391746