Single-Longitudinal-Mode Laser at 1123 nm Based on a Twisted-Mode Cavity

Single-Longitudinal-Mode Laser at 1123 nm Based on a Twisted-Mode Cavity

A single-longitudinal-mode (SLM) Neodymiun-doped Yttrium Aluminium Garnet (Nd:YAG) laser at 1123 nm was first demonstrated with a twisted-mode (TM) cavity. By eliminating the spatial hole burning phenomenon, a stable SLM 1123 nm laser output was obtained. An efficient TM cavity was designed based on...

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Bibliographic Details
Main Authors: Yang Liu, Sasa Zhang, Zhenhua Cong, Shaojie Men, Chen Guan, Yongyao Xie, Zhaojun Liu
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Crystals
Subjects:
1123 nm radiation
single longitudinal mode
twisted mode cavity
high efficiency
Online Access:https://www.mdpi.com/2073-4352/11/1/58
Description
Summary:A single-longitudinal-mode (SLM) Neodymiun-doped Yttrium Aluminium Garnet (Nd:YAG) laser at 1123 nm was first demonstrated with a twisted-mode (TM) cavity. By eliminating the spatial hole burning phenomenon, a stable SLM 1123 nm laser output was obtained. An efficient TM cavity was designed based on the Brewster plate with high reflection under <i>s</i>-polarization radiation. At an incident pump power of 7.65 W, the maximum output power of 689 mW was obtained. The corresponding optical conversion efficiency was about 9%. The center wavelength was 1122.58 nm and the line-width was <140 MHz.
ISSN:2073-4352

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