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Molecular Dispersion Spectroscopy Using a Code-Division-Multiplexed Optical Carrier

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Date

2023

Authors

Wong, Justin
Bandutunga, Chathura
Singh, Priya
Gray, Malcolm
Chow, Jong

Journal Title

Journal ISSN

Volume Title

Publisher

American Physical Society

Abstract

A fiber-optic molecular dispersion spectrometer using code-division multiplexing to make simultaneous phase measurements of a hydrogen cyanide (H13C14N) 2ν3-band P10 rovibrational transition at multiple optical frequencies is demonstrated. A second-derivative anomalous dispersion response is digitally synthesized from sets of these concurrent measurements. The synthesized measurement demonstrates 3 orders of magnitude noise suppression relative to individual measurements, has intrinsic wavelength tuning linearization, and a spectroscopic detection limit of 146ppbm/Hz.

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Keywords

Citation

URI

https://hdl.handle.net/1885/733716966

Collections

ANU Research Publications

Source

Physical Review Applied

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1103/PhysRevApplied.19.044027

Restricted until

2099-12-31

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PhysRevApplied.19.044027.pdf (978.01 KB)

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