Combined raman and IR fiber-based sensor for gas detection

Carter, Jerry C; Chan, James W; Trebes, James E; Angel, Stanley M; Mizaikoff, Boris

Title: Combined raman and IR fiber-based sensor for gas detection

Patent · Tue Jun 24 00:00:00 EDT 2014

OSTI ID:1135723

Carter, Jerry C; Chan, James W; Trebes, James E; Angel, Stanley M; Mizaikoff, Boris

A double-pass fiber-optic based spectroscopic gas sensor delivers Raman excitation light and infrared light to a hollow structure, such as a hollow fiber waveguide, that contains a gas sample of interest. A retro-reflector is placed at the end of this hollow structure to send the light back through the waveguide where the light is detected at the same end as the light source. This double pass retro reflector design increases the interaction path length of the light and the gas sample, and also reduces the form factor of the hollow structure.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC52-07NA27344

Assignee:: Lawrence Livermore National Security, LLC (Livermore, CA); University of South Carolina (Columbia, SC); Georgia Tech Research Corporation (Atlanta, GA)

Patent Number(s):: 8,759,767

Application Number:: 12/545,566

OSTI ID:: 1135723

Resource Relation:: Patent File Date: 2009 Aug 21

Country of Publication:: United States

Language:: English

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