Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/99119
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Type: Journal article
Title: Coherent radio-frequency detection for narrowband direct comb spectroscopy
Author: Anstie, J.
Perrella, C.
Light, P.
Luiten, A.
Citation: Optics Express, 2016; 24(4):4088-4096
Publisher: Optical Society of America
Issue Date: 2016
ISSN: 1094-4087
1094-4087
Statement of
Responsibility: 
James D. Anstie, Christopher Perrella, Philip S. Light, and Andre N. Luiten
Abstract: We demonstrate a scheme for coherent narrowband direct optical frequency comb spectroscopy. An extended cavity diode laser is injection locked to a single mode of an optical frequency comb, frequency shifted, and used as a local oscillator to optically down-mix the interrogating comb on a fast photodetector. The high spectral coherence of the injection lock generates a microwave frequency comb at the output of the photodiode with very narrow features, enabling spectral information to be further down-mixed to RF frequencies, allowing optical transmittance and phase to be obtained using electronics commonly found in the lab. We demonstrate two methods for achieving this step: a serial mode-by-mode approach and a parallel dual-comb approach, with the Cs D1 transition at 894 nm as a test case.
Rights: © 2016 Optical Society of America
RMID: 0030046548
DOI: 10.1364/OE.24.004088
Appears in Collections:Physics publications

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