A Double-Pass Cavity-Enhanced Spectrometer with a Polarization Analyzed Readout
Date
2021
Authors
Guan, Yajie
Bandutunga, Chathura
Gray, Malcolm
Chow, Jong
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IEEE
Abstract
We describe a new optical cavity-enhanced spectroscopy technique which uses a polarization analyzed readout for molecular absorption. It has a double-pass cavity configuration which serves as both a spatial as well as frequency mode self-cleaner. We demonstrate a quantum noise-equivalent absorption sensitivity of ~3x10-13 /vHz /cm, with a sample of carbon dioxide gas in a cavity of finesse ~2000.
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2021 Conference on Lasers and Electro-Optics (CLEO)
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Conference paper
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2099-12-31
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