Optical frequency references on a chip integrated platform

William Loh

doi:10.1117/12.3014620

13 March 2024 Optical frequency references on a chip integrated platform

William Loh

Proceedings Volume PC12912, Quantum Sensing, Imaging, and Precision Metrology II; PC1291216 (2024) https://doi.org/10.1117/12.3014620
Event: SPIE Quantum West, 2024, San Francisco, California, United States

Abstract

Photonically integrated resonators are promising as a platform for enabling ultranarrow linewidth lasers in a compact form factor. Owing to their small size, these integrated resonators suffer from thermal noise that limits the frequency stability of the optical mode to ∼100 kHz. We show here an integrated stimulated Brillouin scattering (SBS) laser based on a large mode volume annulus resonator that realizes a thermorefractive-limited linewidth of 270 Hz. Despite these efforts in thermal noise reduction, yet narrower linewidths are required before integrated lasers can be truly useful for applications such as optical atomic clocks, quantum computing, gravitational wave detection, and precision spectroscopy. We demonstrate here some techniques to further suppress the linewidth of chip-integrated lasers, reaching levels below 30 Hz.

Conference Presentation

Citation Download Citation

William Loh "Optical frequency references on a chip integrated platform", Proc. SPIE PC12912, Quantum Sensing, Imaging, and Precision Metrology II, PC1291216 (13 March 2024); https://doi.org/10.1117/12.3014620

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