Long, D.
, Bresler, S.
, Bao, Y.
, Reschovsky, B.
, LeBrun, T.
and Gorman, J.
(2023),
Single-modulator, direct frequency comb spectroscopy via serrodyne modulation, Optics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=935630
(Accessed April 28, 2024)
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Single-modulator, direct frequency comb spectroscopy via serrodyne modulation
Published
Author(s)
, , , , ,
Abstract
Traditional electro-optic frequency comb spectrometers rely upon the use of an acousto-optic modulator (AOM) to provide a differential frequency shift between probe and local oscillator (LO) legs of the interferometer. Here we show that these modulators can be replaced by an electro-optic phase modulator (EOM) which is driven by a sawtooth waveform to induce serrodyne modulation. This approach enables direct frequency comb spectroscopy to be performed with a single dual-drive Mach–Zehnder modulator (DD-MZM), allowing for lower differential phase noise. Further, this method allows for simpler production of integrated photonic comb spectrometers on the chip scale.Citation
Optics Letters
Volume
4
Issue
15
Pub Type
Journals
Download Paper
Keywords
Optical frequency comb, accelerometry, serrodyne
Citation
Created February 3, 2023, Updated February 16, 2024