Work

Characterization of non-planar ring oscillators at a wavelength of 1064 nm for high precision metrology

Year: 2025

Type: article

Abstract: Ultra-stable laser light is essential for high-precision interferometric measurements, in particular for the next generation of gravitational wave detectors, where high power lasers with unprecedented low power and frequency noise are demanded. Since the seed laser for high-power laser systems has a large influence on the overall noise characteristics, the use of the lowest noise seed laser is beneficial. This study compares a newly developed seed laser, based on a non-planar ring oscillator (NPRO) design, at a wavelength of 1064 nm with two commercial NPROs and shows that the new laser exhibits ten times lower power and frequency noise. This noise advantage is retained even after subsequent amplification to 40 W.

Source: Review of Scientific Instruments

DOI: 10.1063/5.0298918

Authors: H. Vahlbruch, F. Meylahn, B. Willke

Institutions: Leibniz University Hannover, Max Planck Institute for Gravitational Physics

Language: English

Topic: Solid State Laser Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Funder: Deutsche Forschungsgemeinschaft

Awards: G40493870, EXC 2123: QuantumFrontiers Licht und Materie an der Quantengrenze, G745383156