A compact sub-hertz linewidth Fabry Perot cavity frequency stabilized laser for space application

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 x 10(-15)@1s achieved preliminarily, and the linewidth is 0.86 Hz.

Automated summary

This study introduces a prototype narrow linewidth laser based on a high finesse optical reference cavity, which can operate reliably in space. The research has preliminarily achieved a fractional frequency instability of 1.6 x 10(-15) @ 1s and a linewidth of 0.86 Hz for a single system.