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Proceedings Paper

Low-power laser-based carbon monoxide sensor for fire and post-fire detection using a compact Herriott multipass cell
Author(s): David Thomazy; Stephen So; Anatoliy Kosterev; Rafal Lewicki; Lei Dong; Ardalan A. Sani; Frank K. Tittel
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Paper Abstract

With the anticipated retirement of Space Shuttles in the next few years, the re-supplying of short-lifetime sensors on the International Space Station (ISS) will be logistically more difficult. Carbon Monoxide (CO) is a well-known combustion product and its absence in a fire and post-fire environment is a reliable indicator for mission specialists that the air quality is at a safe to breathe level. We report on the development and performance of a prototype compact CO sensor, based on the PHOTONS platform [1], developed for the ISS based on tunable diode laser absorption spectroscopy (TDLAS). A CO absorption line at ~4285 cm-1 is targeted using a distributed-feedback (DFB) laser diode operating at room temperature. A custom designed Herriott multipass cell 16cm long, with an effective path length of 3.7 m is employed. Mechanical, optical and electronics systems are integrated into a compact package of dimensions measuring 12.4"x 3.4"x 5". Power consumption is less than 1 W, enabling prolonged battery life. A detection limit of 3 ppm is achieved when performing 40 second long temperature scans. A recent initial test at NASA-JSC was successful. Future improvements include the reduction of the sampling volume, scan time and an improved CO minimum detection limit.

Paper Details

Date Published: 22 January 2010
PDF: 6 pages
Proc. SPIE 7608, Quantum Sensing and Nanophotonic Devices VII, 76080C (22 January 2010); doi: 10.1117/12.841926
Show Author Affiliations
David Thomazy, Rice Univ. (United States)
Stephen So, Princeton Univ. (United States)
Anatoliy Kosterev, Rice Univ. (United States)
Rafal Lewicki, Rice Univ. (United States)
Lei Dong, Rice Univ. (United States)
Ardalan A. Sani, Rice Univ. (United States)
Frank K. Tittel, Rice Univ. (United States)

Published in SPIE Proceedings Vol. 7608:
Quantum Sensing and Nanophotonic Devices VII
Manijeh Razeghi; Rengarajan Sudharsanan; Gail J. Brown, Editor(s)

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