A compact sub-hertz linewidth Fabry Perot cavity frequency stabilized laser for space application. (April 2021)

• Record Type: Journal Article
• Authors: Liu, Jun; Liu, Tao; Chen, Long; Zhang, Linbo; Xu, Guanjun; Jiao, Dongdong; Zhang, Shougang
• Is Part Of: Optics & laser technology. Volume 136(2021)
• Publication Date: 2021-04
• Subjects: Narrow linewidth laser -- Fabry–Perot cavity -- Semiconductor lasers -- PDH technique -- Optical atom clock; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2020.106777
• Languages: English
• ISSNs: 0030-3992

Abstract

Highlights: Prototype of compact narrow linewidth laser for space application. The frequency instability is 1.6 × 10 - 15 @1s and the linewidth is 0.86 Hz. The cavity physical module can resist the impact of acceleration >5 g. Automatic frequency stabilization control bandwidth reaches 2.5 MHz. Temperature variation is the main limiting factors of laser frequency instability. Abstract: The narrow linewidth laser which can operate reliably in space environment has important application value. This paper introduces the prototype of a miniaturized narrow linewidth laser for space application based on a self-developed high finesse optical reference cavity. The prototype performs beat frequency comparison measurement with another narrow linewidth laser system in the laboratory. The fractional frequency instability of a single system is 1.6 × 10 - 15 @1s achieved preliminarily, and the linewidth is 0.86 Hz.