Journal article
Trace gas detection using 1.3-microm InGaAsP diode laser transmitter modules.
Abstract
The detection of small absorptions using a laser absorption spectrometer (LAS) based on InGaAsP diode laser transmitter modules has been investigated. The modules are normally employed in optical communication systems and as such operate at 1.3 microm and have single-mode-fibor pigtails to couple the light out. The minimum detectable absorption of the LAS wasfound tobe ~5 x 10(-5) with harmonic detection and ~1 x 10(-4) with sweep integration. …
Authors
Cassidy DT
Journal
Applied Optics, Vol. 27, No. 3, pp. 610–614
Publisher
Optica Publishing Group
Publication Date
February 1, 1988
DOI
10.1364/ao.27.000610
ISSN
1559-128X