期刊
OPTIK
卷 256, 期 -, 页码 -出版社
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2022.168743
关键词
Nb2AlC; nonlinear optical characteristic; Passive Q-switched; Tm:YAP laser
类别
资金
- Key project of Heilongjiang Natural Science Foundation [ZD2021F002]
- Applied Technology Research and Development Project of Heilongjiang Province [GZ19J104]
- Outstanding Young Talents Project of the Central Support fund for the reform and development of local universities in Heilongjiang Province [2020YQ11]
- Postdoctoral Science Foundation of China [2021MD703833]
- Key Laboratory of Engineering Dielectrics and Its Application (Harbin University of Science and Technology) , Ministry of Education [KFM202005]
In this study, a Nb2AlC-based saturable absorber (SA) was prepared and its nonlinear absorption performances in nanosecond laser were demonstrated. The results showed efficient output power and pulse energy from a passively Q-switched Tm:YAP laser using Nb2AlC SA.
As a new two-dimensional MXene material, Nb2AlC has a wide range of applications due to its superior optical, physical, and chemical properties. In this paper, we prepared a Nb2AlC-based saturable absorber (SA) and demonstrated its nonlinear absorption performances by a 2-mu m scope nanosecond laser. Based on Nb2AlC SA, an 1.62-W average output power and a 850-ns pulse duration at 135 kHz were obtained from a passively Q-switched Tm:YAP (PQS) laser with a 10.34-W pump power, and a 12.00-mu J pulse energy was achieved in the experiment, corresponding to a central output wavelength of 1987.2 nm and an optical-optical conversion efficiency of 13.5%. In addition, beam quality factors less than 1.10 in x-axis direction and y-axis direction were achieved from the PQS Tm:YAP laser.
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