Chemical sensing techniques employing liquid-core optical fibers

Details Chemical sensing techniques employing liquid-core optical fibers Chemical sensing techniques employing liquid-core optical fibers

1997-10-16

2000-01-04

Lee, John D.

Optical waveguides

Optical waveguide sensor

385125, 25022718, 356436, G02B 600

Patent

active

060118822

ABSTRACT:
A permeable optical fiber waveguide with a liquid core is employed as a probe for the detection or measurement of a chemical specie of interest by filling the waveguide core region with a light transmitting reagent liquid which undergoes a change in an optical characteristic thereof when exposed to the chemical specie and then inserting the filled waveguide into an environment in which the chemical specie may be present. The chemical specie, if present, will permeate through the waveguide wall and react with or be absorbed in the core liquid.

REFERENCES:
patent: 3679312 (1972-07-01), Mansberg
patent: 4600310 (1986-07-01), Cramp et al.
patent: 4867919 (1989-09-01), Yafuso et al.
patent: 5444807 (1995-08-01), Liu
"Liquid-Core Waveguides for Chemical Sensing", Hong et al., SPIE vol. 2293, pp. 71-79, 1994.

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