Watt-level single-frequency tunable Neodymium MOPA fiber laser operating at 915-937 nm

TL;DR

This paper reports the development of a high-power, single-frequency, tunable neodymium-doped fiber laser operating between 915 and 937 nm, suitable for various scientific and industrial applications.

Contribution

It introduces a Watt-level, tunable, single-frequency fiber laser with stable output and low noise in the 915-937 nm range, based on a novel master oscillator power amplifier architecture.

Findings

Output power exceeds 2 W across the tuning range

Spectral stability better than 1.4%

Low relative intensity noise

Abstract

We have developed a Watt-level single-frequency tunable fiber laser in the 915-937 nm spectral window. The laser is based on a neodymium-doped fiber master oscillator power amplifier architecture, with two amplification stages using a 20 mW extended cavity diode laser as seed. The system output power is higher than 2 W from 921 to 933 nm, with a stability better than 1.4 percent and a low relative intensity noise.