Share Email Print
cover

Proceedings Paper

A Sensitive Fiber-Optic Gas Spectrophone
Author(s): D. H. Leslie; R. O . Miles; A. Dandridge
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

An improved spectrophone for measurements of laser absorption in gases has been tested. The device employs a fiber-optic interferometer, wound into a cylindrical shape, as the acoustic sensor. Performance of the device was evaluated by measuring the absorption of 3.39 μm HeNe laser radiation in a calibrated mixture of methane in Argon. Results indicate a minimum detectable absorption capability of 2x10-7cm-1 W/√ MHz , although a background signal 30 dBV above the noise limited performance. We report an improvement in sensitivity several orders of magnitude above the first fiber-optic spectrophone.

Paper Details

Date Published: 19 September 1983
PDF: 5 pages
Proc. SPIE 0412, Fiber Optic and Laser Sensors I, (19 September 1983); doi: 10.1117/12.935811
Show Author Affiliations
D. H. Leslie, Naval Research Laboratory (United States)
R. O . Miles, Naval Research Laboratory (United States)
A. Dandridge, Naval Research Laboratory (United States)


Published in SPIE Proceedings Vol. 0412:
Fiber Optic and Laser Sensors I
Emery L. Moore; O. Glenn Ramer, Editor(s)

© SPIE. Terms of Use
Back to Top