Dual-Wavelength Continuous-Wave and Passively Q-Switched Alexandrite Laser at 736.7 nm and 752.8 nm

A dual-wavelength continuous-wave (CW) and passively Q-switched alexandrite laser based on a MoS2 saturable absorber (SA) operating at 736.7 nm and 752.8 nm with a simple and compact 18 mm plano–plano resonator is reported. In the CW mode, the output power is 1014 mW at the linear-polarized pump pow...

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Bibliographic Details
Published inPhotonics Vol. 9; no. 10; p. 769
Main Authors Lin, Hongyi, Bao, Shangfeng, Liu, Xiao, Song, Shuo, Wen, Zhiwei, Sun, Dong
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.10.2022
Subjects
Alexandrite
alexandrite laser
Chemical vapor deposition
Continuous radiation
dual-wavelength laser
Efficiency
Energy
Graphene
Laser applications
Laser industry
Lasers
Light
Molybdenum disulfide
MoS2
Nonlinear optics
Optical radar
Pulse duration
Q switched lasers
Q-switched
Remote sensing
Spectrum allocation
Spectrum analysis
Wavelength
Texas
China
United States > US
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Summary:A dual-wavelength continuous-wave (CW) and passively Q-switched alexandrite laser based on a MoS2 saturable absorber (SA) operating at 736.7 nm and 752.8 nm with a simple and compact 18 mm plano–plano resonator is reported. In the CW mode, the output power is 1014 mW at the linear-polarized pump power of 5.44 W, with a slope efficiency of 28.7%. In the pulsed operation, the narrowest pulse width and the maximal peak power are 154 ns and 10.6 W, respectively. This laser can be used to generate 8.71 THz-wave light based on a suitable nonlinear optical crystal.
ISSN:2304-6732
2304-6732
DOI:10.3390/photonics9100769