Generation of 14.0W of single frequency light at 770 nm by intracavity frequency doubling

TL;DR

This paper reports a high-power, narrow-linewidth laser at 770 nm generated via intracavity frequency doubling of a 1540 nm fiber amplifier, suitable for cold atom experiments.

Contribution

The authors demonstrate a 14.0 W single-frequency laser at 770 nm with high efficiency using intracavity frequency doubling in an enhancement ring cavity.

Findings

Achieved 14.0 W at 770 nm output power.

Used >74% conversion efficiency from 1540 nm to 770 nm.

Produced low noise, narrow linewidth light suitable for cold atom applications.

Abstract

We present a continuous, narrow-linewidth, tunable laser system that outputs up to 14.0 W at 770 nm. The light is generated by frequency doubling 18.8 W of light from a 1540 nm fiber amplifier that is seeded by a single mode diode laser achieving >74% conversion efficiency. We utilize a Lithium Triborate Crystal in an enhancement ring cavity. The low intensity noise and narrow linewidth of the 770 nm output are suitable for cold atom experiments.