Thermally managed ring-cavity design enables LED-pumped Nd,Ce:YAG continuous wave single-longitudinal-mode laser for cost-effective precision photonics
Year: 2025
Type: article
Abstract: We present a continuous wave (CW) single-longitudinal-mode (SLM) laser with a ring cavity based on efficient light-emitting diodes (LEDs)-pumped Nd,Ce:YAG dual-rod laser modules. In the free-running regime, a maximum average power of 4.27 W at 1064 nm is obtained, corresponding to the highest optical conversion efficiency of 5.1% and a slope efficiency of 13.9%. When operating in SLM configuration, the laser maintains a stable CW output of 200 mW with beam quality factors ( M 2 ) measuring 1.44 and 1.30 along orthogonal x - and y -axes respectively. Spectral analysis reveals an emission linewidth of 70.76 MHz at maximum SLM output. This work represents, to the authors’ knowledge, both the first successful implementation and the highest recorded performance characteristics for an LED-pumped Nd,Ce:YAG CW SLM laser system utilizing ring cavity configuration.
Source: Chinese Physics B
Authors: Rong-Rong 容容 Jiang 江, Rui-Ze 瑞泽 Xia 夏, Feng-Yang 凤阳 Xing 邢, Liang 亮 Chen 陈, Yang 阳 Chen 陈, Feng-Bo 峰博 Zhang 张, Huan-Yu 环宇 Zuo 左, Jian-Ping 建平 Shen 沈, Ling-Hai 令海 Xie 解
Institution: Nanjing University of Posts and Telecommunications
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,500
OpenAlex ID: W4413467711