Time-wavelength spectroscopy for chemical sensing
J. Chou
Y. Han
B. Jalali
Optoelectronic Circuits & Syst. Lab., Univ. of California Los Angeles, CA, USA;
This paper appears in: Photonics Technology Letters, IEEE
Publication Date: April 2004
Volume: 16,
Issue: 4
On page(s): 1140-1142
ISSN: 1041-1135
INSPEC Accession Number: 7934611
Digital Object Identifier: 10.1109/LPT.2004.824997
Current Version Published: 2004-04-05
Abstract
Time-wavelength spectroscopy, using a linearly chirped broad-band pulse, eliminates the need for an optical spectrometer and enables real-time analysis. Utilizing digital filtering and matched detection, we demonstrate identification of gas signatures that are entirely masked by highly nonuniform source spectra.
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