Open AccessTheoretical and experimental investigations on doubly Q-switched Tm:YAP laser with EOM and Sb2Te3 nanosheets
Author(s) -
Ziqun Niu,
Tianli Feng,
Tao Li,
Kejian Yang,
Jia Zhao,
Guiqiu Li,
Dechun Li,
Shengzhi Zhao,
Wenchao Qiao,
Hongwei Chu,
Yizhou Liu
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.433449
Subject(s) - laser , materials science , pulse duration , saturable absorption , q switching , optics , diode , pulse width modulation , pulse (music) , pulse compression , optoelectronics , power (physics) , fiber laser , physics , telecommunications , radar , quantum mechanics , detector , computer science
In this paper, two-dimensional material Sb 2 Te 3 nanosheets are fabricated and the optical nonlinear response is investigated. A laser diode (LD) end-pumped doubly Q-switched Tm:YAP laser with electro-optic modulator (EOM) and Sb 2 Te 3 nanosheets based saturable absorber (SA) is presented. The shortest pulse duration of 38 ns is achieved at the pulse repetition frequency of 100 Hz, corresponding to the highest peak power of 111.8 kW. The double Q-switching technique shows the advantages of pulse duration compression and peak power improvement. The coupled rate equations for the doubly Q-switched laser are developed and the corresponding numerical simulation agrees with the experimental results. We believe that the Sb 2 Te 3 is a potential nanomaterial for the application in optoelectronic field.