Long-term laser frequency stabilization using fiber interferometers

TL;DR

This paper demonstrates a method for long-term laser frequency stabilization using fiber interferometers, achieving high stability comparable to atom-stabilized references without requiring complex setups.

Contribution

It introduces a fiber interferometer-based stabilization technique that simplifies long-term laser frequency control with high precision.

Findings

Achieved a frequency Allan deviation of 6.9×10^{-10} at 1000 s

Performed stabilization using only fiber interferometers and a target laser

Matched performance of atom-stabilized laser offset locking

Abstract

We report long-term laser frequency stabilization using only the target laser and a pair of 5 m fiber interferometers, one as a frequency reference and the second as a sensitive thermometer to stabilize the frequency reference. When used to stabilize a distributed feedback laser at 795 nm, the frequency Allan deviation at 1000 s drops from 5.6*10^{-8} to 6.9*10^{-10}. The performance equals that of an offset lock employing a second, atom-stabilized laser in the temperature control.