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12 December 2022 Optical cavity for ultra-narrow linewidth laser system
L. Pravdová, J. Hrabina, M. Čížek, O. Čip, F. Procháska, J. Beneš
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Proceedings Volume 12502, 22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 1250204 (2022) https://doi.org/10.1117/12.2664193
Event: 22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2022, Wojanow, Poland
Abstract
The precise optical resonators represent a key tool for ultra-narrow linewidth laser frequency stabilisation. They can serve as references for lasers of optical clock systems, optical frequency combs locking, dissemination of precise time and frequencies over optical links, or laser interferometry. The critical properties of these resonators are determined by their design, used materials and environmental conditions where they are operated. This contribution describes the design and performance of the “kHz” linewidth optical cavity intended for spectral-narrowing of a 1541 nm fibre laser. The cylindrical-shaped Fabry-Perot resonator with optical mirrors and a spacer part made of ceramics with ultra-low thermal expansion coefficient is placed inside the multi-shielded vacuum and thermostated chamber. The optical setup employs the Pound-Drewer-Hall locking technique for laser locking, and the resonator’s performance is measured by the ring-down measurement.
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L. Pravdová, J. Hrabina, M. Čížek, O. Čip, F. Procháska, and J. Beneš "Optical cavity for ultra-narrow linewidth laser system", Proc. SPIE 12502, 22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 1250204 (12 December 2022); https://doi.org/10.1117/12.2664193
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KEYWORDS
Resonators
Optical resonators
Laser resonators
Laser systems engineering
Laser optics
Optical design
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