2025-06-04 中国科学院(CAS)
Schematic diagram of the all-solid-state single-longitudinal continuous-wave 1064nm laser (Image by LIU Pan)
＜関連情報＞
- https://english.cas.cn/newsroom/research_news/tech/202506/t20250605_1045039.shtml
- https://www.sciencedirect.com/science/article/abs/pii/S0030399225007157
分子ヨウ素吸収に基づく波長1064nmの安定な全固体連続波単一縦モードNd:YVO4レーザー A stable all-solid-state continuous-wave single-longitudinal-mode Nd:YVO4 laser at 1064 nm based on the molecular iodine absorption
Pan Liu, Ya-Jun Wu, Xin-Hui Sun, Lin-Hao Shang, Jin-Xin Chen, Gang Cheng, Hui-Hui Gao, Yi-Bin Fu, Xi Chen, Xiao-Nan Zhao, Tian-Shu Zhang, Wen-Qing Liu
Optics & Laser Technology Available online: 9 May 2025
DOI:https://doi.org/10.1016/j.optlastec.2025.113124
Abstract
The all-solid-state single-longitudinal-mode laser at 1064 nm has found a wide range of applications in laser spectroscopy, quantum physics, etc. By combining it with frequency locking techniques, a stable single-longitudinal-mode laser without mode-hopping can be achieved. Many frequency stabilization techniques typically require complex optoelectronic control systems. In this work, we present a continuous-wave single-longitudinal Nd:YVO4 laser based on a ring resonator, employing a simple yet effective locking method. The laser frequency is locked to the edge of a particular absorption spectral line of the molecular iodine. Utilizing a feedback controller, we have achieved a frequency stability better than ±3.35 MHz over a duration of 7 h. To our knowledge, this represents one of the best long-term frequency locking results for this kind of single-longitudinal-mode Nd:YVO4 laser. This stable single-longitudinal-mode laser will be a core component in the laser source of a differential absorption lidar system, which will be used in the future to monitor air pollutants and greenhouse gases.
