Molecular Gas Sensing in the Near Infrared using Digitally Enhanced Dispersion Spectroscopy

Justin Wong; Chathura P. Bandutunga; Ya Zhang; Malcolm B. Gray; Jong H. Chow

doi:10.1364/ES.2021.ETh1A.4

OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES)
OSA Technical Digest (Optica Publishing Group, 2021),
paper ETh1A.4
•https://doi.org/10.1364/ES.2021.ETh1A.4

Molecular Gas Sensing in the Near Infrared using Digitally Enhanced Dispersion Spectroscopy

Justin Wong, Chathura P. Bandutunga, Ya Zhang, Malcolm B. Gray, and Jong H. Chow

Optics and Photonics for Sensing the Environment 2021

Washington, DC United States
19–23 July 2021
ISBN: 978-1-943580-90-3

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J. Wong, C. P. Bandutunga, Y. Zhang, M. B. Gray, and J. H. Chow, "Molecular Gas Sensing in the Near Infrared using Digitally Enhanced Dispersion Spectroscopy," in OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES), S. Buckley, F. Vanier, S. Shi, K. Walker, I. Coddington, S. Paine, K. Lok Chan, W. Moses, S. Qian, P. Pellegrino, F. Vollmer, G. , J. Jágerská, R. Menzies, L. Emmenegger, and J. Westberg, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper ETh1A.4.

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Abstract

A frequency and intensity noise immune fiber dispersion spectrometer with a digitally enhanced homodyne phase extraction system is presented. It is used to interrogate the anomalous dispersion of Hydrogen Cyanide (H¹³CN) in the near-infrared.

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