Abstract

The simultaneous emission and detection of radiation with a semiconductor laser is investigated. Measured signal-to-noise ratios of up to 56 dB demonstrate that self-detecting devices are adequate for sensor applications with discrete measurands. We observed a strong polarization dependence, which can cause response fluctuations, and suggest methods to minimize these fluctuations. This technique could be used for lower-cost sensors without splitters and detectors.

© 1995 Optical Society of America

Passive signal processing for a miniature Fabry–Perot interferometric sensor with a multimode laser-diode source

A. Ezbiri and R. P. Tatam
Opt. Lett. 20(17) 1818-1820 (1995)

Multiplexed heterodyne fiber interferometer that uses laser-diode modulation

Ichirou Yamaguchi and Katsutoshi Hamano
Opt. Lett. 20(15) 1661-1663 (1995)

Ultrasensitive dual-beam absorption and gain spectroscopy: applications for near-infrared and visible diode laser sensors

Mark G. Allen, Karen L. Carleton, Steven J. Davis, William J. Kessler, Charles E. Otis, Daniel A. Palombo, and David M. Sonnenfroh
Appl. Opt. 34(18) 3240-3249 (1995)

Emission buildup in Q-switched fiber lasers

Oleg G. Okhotnikov and Jose R. Salcedo
Opt. Lett. 20(8) 887-889 (1995)

Spatial frequency multiplexing of optical fiber sensor arrays

Y. Hu and S. Chen
Opt. Lett. 20(10) 1207-1209 (1995)