Stacey, J; Barwood, G; Spampinato, A; Tsoulos, P; Robinson, C; Gaynor, P; Gill, P (2023) Laser frequency stabilisation for the LISA mission using a cubic cavity. Proceedings of SPIE, 12777. 127777F
Full text not available from this repository.Abstract
The design and testing of a laser frequency stabilisation system is presented for potential use in the LISA mission. The system is based on a National Physical Laboratory (NPL) dual-axis cubic cavity. The cavity spacer is manufactured from Corning ultra-low expansion (ULE) glass and incorporates thermo-mechanically insensitive mounting to allow compliance to LISA frequency noise power spectral density (PSD) requirements within the ESA-specified thermal and vibration noise environments.
The performance of this cavity-based frequency stabilised laser has been determined by beat frequency comparison versus an NPL optical clock reference cavity. Light is propagated via fibre from this reference laser and an optical path-length stabilisation system is implemented to cancel phase noise induced in the fibre link. We have measured the thermal expansion for both axes of the cube and control the temperature where the linear thermal expansion of one bore is near zero. We have also measured the contribution to the overall frequency stability of thermal noise in a proposed 5-m fibre link between the laser and cavity. Finally, we demonstrate that a laser locked to the NPL cubic cavity meets the LISA frequency noise requirements.
Item Type: | Article |
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Keywords: | optical cavities; laser frequency stabilisation; LISA ; thermal noise |
Subjects: | Time and Frequency > Optical Frequency Standards and Metrology |
Divisions: | Time & Frequency |
Identification number/DOI: | 10.1117/12.2691441 |
Last Modified: | 18 Oct 2023 13:37 |
URI: | http://eprintspublications.npl.co.uk/id/eprint/9846 |
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