Compact, portable, thermal-noise-limited optical cavity with low acceleration sensitivity

We develop and demonstrate a compact (less than 6 mL) portable Fabry-Pérot optical reference cavity. A laser locked to the cavity is thermal noise limited at 2 × 10 fractional frequency stability. Broadband feedback control with an electro-optic modulator enables near thermal-noise-limited phase noi...

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Bibliographic Details
Published in:Optics express 2023-03, Vol.31 (7), p.11954-11965
Main Authors: Kelleher, Megan L, McLemore, Charles A, Lee, Dahyeon, Davila-Rodriguez, Josue, Diddams, Scott A, Quinlan, Franklyn
Format: Article
Language:English
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Summary:We develop and demonstrate a compact (less than 6 mL) portable Fabry-Pérot optical reference cavity. A laser locked to the cavity is thermal noise limited at 2 × 10 fractional frequency stability. Broadband feedback control with an electro-optic modulator enables near thermal-noise-limited phase noise performance from 1 Hz to 10 kHz offset frequencies. The additional low vibration, temperature, and holding force sensitivity of our design makes it well suited for out-of-the-lab applications such as optically derived low noise microwave generation, compact and mobile optical atomic clocks, and environmental sensing through deployed fiber networks.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.486087