Open AccessPassively Q-Switched Tm: YAP Laser with a WSe2 Saturable Absorber
Author(s) -
Guoxing Li,
Xining Yang,
Linjun Li,
Hongda Zhang,
Ziqiu Zhang,
Liang Zhang
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/782/2/022106
Subject(s) - saturable absorption , materials science , laser , pulse duration , absorption (acoustics) , power (physics) , optics , pulse (music) , pulse width modulation , optoelectronics , fiber laser , physics , quantum mechanics , detector , composite material
In this paper, WSe 2 nanosheets were prepared and demonstrated to have non-linear absorption characteristics that were saturated at about 2 μm. A passively Q-swithched (PQS) Tm:YAP laser was perfectly implemented with the Wse 2 nanosheets as a saturable absorber (SA). In PQS mode, an average output power of 1.01 W with a pulse duration of 1.7 μs at 166.7 kHz was achieved with a pump power of 12.1 W, corresponding to an optical-optical conversion efficiency of 8.3%. A peak power of 3.88 W was acquired from a PQS Tm: YAP laser.