Abstract

An integrated-optic fluid sensor utilizing the heat-transfer phenomenon is proposed. An optical waveguide interferometer is used to convert the temperature of the waveguide surface exposed to the surrounding fluid into an intensity modulated light signal. The temperature changes with the variation of a certain physical property of the fluid when the substrate is steadily heated. The expected characteristics are discussed for measurement of the rarefied gas pressure and the air humidity. Also a humidity sensing experiment was carried out by constructing and testing a device using a LiNbO3 waveguide to confirm its basic performance.

© 1988 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Integrated optical interferometer with a stacked waveguide structure

Shaodong Wu and Hans J. Frankena
Appl. Opt. 28(20) 4424-4428 (1989)

Integrated optical sensor using a liquid-core waveguide in a Mach-Zehnder interferometer

Patrick Dumais, Claire L. Callender, Julian P. Noad, and Christopher J. Ledderhof
Opt. Express 16(22) 18164-18172 (2008)

Semifocusing Color Schlieren System for Use in Fluid Mechanics and Heat Transfer

Z. Rotem, E. G. Hauptmann, and L. Claassen
Appl. Opt. 8(11) 2326-2328 (1969)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (13)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription