Microbend fiber-optic chemical sensor

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874291

Weiss, Jonathan D ^[1]

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1. Albuquerque, NM

A microbend fiber-optic chemical sensor for detecting chemicals in a sample, and a method for its use, is disclosed. The sensor comprises at least one optical fiber having a microbend section (a section of small undulations in its axis), for transmitting and receiving light. In transmission, light guided through the microbend section scatters out of the fiber core and interacts, either directly or indirectly, with the chemical in the sample, inducing fluorescence radiation. Fluorescence radiation is scattered back into the microbend section and returned to an optical detector for determining characteristics of the fluorescence radiation quantifying the presence of a specific chemical.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• DOE Contract Number: AC04-94AL85000
• Assignee: The United States of America as represented by the U.S. Department of (Washington, DC)
• Patent Number(s): US 6358748
• OSTI ID: 874291
• Country of Publication: United States
• Language: English

Related Subjects

microbend
fiber-optic
chemical
sensor
detecting
chemicals
sample
method
disclosed
optical
fiber
section
undulations
axis
transmitting
receiving
light
transmission
guided
scatters
core
interacts
directly
indirectly
inducing
fluorescence
radiation
scattered
returned
detector
determining
characteristics
quantifying
presence
specific
optical fiber
chemical sensor
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