Passively Q-switched Tm/Ho composite laser

Haizhou Huang; Jinhui Li; Jing Deng; Yan Ge; Huagang Liu; Jianhong Huang; Wen Weng; Wenxiong Lin

doi:10.29026/oea.2020.190031

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Huang H Z, Li J H, Deng J, Ge Y, Liu H G et al. Passively Q-switched Tm/Ho composite laser. Opto-Electron Adv 3, 190031 (2020). doi: 10.29026/oea.2020.190031

Citation:

Huang H Z, Li J H, Deng J, Ge Y, Liu H G et al. Passively Q-switched Tm/Ho composite laser. Opto-Electron Adv 3, 190031 (2020). doi: 10.29026/oea.2020.190031

Original Article Open Access

Passively Q-switched Tm/Ho composite laser

1.
Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, 117576, Singapore

More Information

^*Corresponding author: W X Lin, E-mail: wxlin@fjirsm.ac.cn

Received Date 31 July 2019

Accepted Date 17 September 2019

Available Online 20 April 2020

Published Date 21 April 2020

Abstract

Abstract

We explored Q-switching mechanism for the newly proposed Tm/Ho composite laser via developing a hybrid resonator for separating the intra-cavity Tm laser modulated by the saturable absorber (SA). With a Cr:ZnSe SA, successful passively Q-switching process with the maximum average output power of 474 mW and the shortest pulse width of 145 ns were obtained at the pulse repetition frequency of 7.14 kHz, where dual wavelength oscillation in both 2090 nm and 2097 nm was observed. This work provides an effective way for a direct laser diode (LD) pumped Q-switched Ho laser, which is compact and accessible. Furthermore, the current SA could be replaced by the 2D materials with broadband saturable absorption such as topological insulators or transition-metal dichalcogenides for seeking novel PQS lasers.
- Ho laser /
- Tm laser /
- Tm/Ho composite /
- passively Q-switched /
- Cr:ZnSe

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References

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