精密光学教学中基于超稳腔实现窄线宽性能的方法  

Realization of Narrow Linewidth Property Based on Ultra-Stable Cavity in Precision Optics Teaching

作　　者：彭瑜[1] 施清平 霍虎[1] 李伟 Peng Yu;Shi Qingping;Huo Hu;Li Wei(School of Science,Beijing Forestry University,Beijing 100083,China;Beijing Institute of Astronautical Systems Engineering,Beijing 100076,China;China South Industries Institute,Beijing 100089,China)

机构地区：[1]北京林业大学理学院,北京100083 [2]北京宇航系统工程研究所,北京100076 [3]中国南方工业研究院,北京100089

出　　处：《激光与光电子学进展》2017年第8期190-195,共6页Laser & Optoelectronics Progress

基　　金：中央高校基本科研业务费专项资金(BLX2015-09);国家自然科学基金(11504022);国家自然科学基金重点项目(31530084)

摘　　要：基于半导体激光器,使用零膨胀系数材料制成超稳腔来实现窄线宽激光输出。激光二级管与光栅构成Littrow外腔,一级衍射后,小部分输出光用来锁定超稳腔,实现了激光的线宽压窄,大部分输出光注入到锥形放大器中,实现光功率放大。最终获得波长为1064nm、输出功率为290mW、线宽为10kHz的激光输出。该技术可应用于原子、分子精密光谱领域。Based on semiconductor lasers, the zero-expansion coefficient material is employed to build an ultra-stable cavity which is used to realize a narrow linewidth laser output. A laser diode and a grating are combined to form a Littrow structural external-cavity. After the first order diffraction, a small part of the output beam is used to lock the ultra stable cavity which realizes the linewidth narrowing, and most of the output beam is injected into a tapered amplifier to achieve an amplification of optical power. A laser output with the wavelength of 1064 nm, output power of 290 mW and linewidth of 10 kHz is finally acquired. This technique can be applied in the area of atomic and molecular precision spectroscopy.

关 键 词：激光技术 线宽压窄 超稳腔锁定 半导体激光 光学频率梳 

分 类 号：TN242[电子电信—物理电子学]