Optical fiber polarimetric chemical sensor

Details Optical fiber polarimetric chemical sensor Optical fiber polarimetric chemical sensor

2006-05-19

2008-07-22

Pak, Sung (Department: 2874)

Optical waveguides

Optical waveguide sensor

C385S123000

Reexamination Certificate

active

07403673

ABSTRACT:
The invention relates to distributed optical waveguide polarimetric chemical analysis. Real-time monitoring of a separation process of a fluid in a capillary column is provided using a distributed sensor comprising a birefringent optical waveguide placed between two polarizers. The optical waveguide has a longitudinal channel defined by a channel surface in its cladding and adapted to receive the fluid such that it travels in said longitudinal channel. The longitudinal channel is positioned with respect to the core such that channel surface absorption of the fluid traveling in the longitudinal channel causes a local variation of the orientation of the polarization axes of the optical waveguide. The proposed embodiment can be used for monitoring the velocity of the separated components along the channel.

REFERENCES:
patent: 5515459 (1996-05-01), Farhadiroushan
patent: 5640234 (1997-06-01), Roth et al.
patent: 6208776 (2001-03-01), Prohaska et al.
patent: 6753520 (2004-06-01), Spirin et al.
patent: 2002/0041723 (2002-04-01), Ronnekleiv et al.
patent: 2002/0131737 (2002-09-01), Broeng et al.
patent: 2003/0174985 (2003-09-01), Eggleton et al.
Swart et al; Recent Progress in Open Tubular Liquid Chromatography; Trends in Analytical Chemistry; 1997; pp. 332-341; vol. 16, No. 6; Elsevier Science B.V.
Snyovec et al; Chemical Sensing of In-Situ Extracted Organics by Direct Detection of Mode-Filtered Light; Chemical, Biochemical, and Environmental Fiber Sensors VI; Jul. 26-27, 1994; jvol. 2293; SPIE—The International Society for Optical Engineering; San Diego, Ca, USA.
Zhou et al; A Fibre-Optic Mode-Filtered Light Sensor for General and Fast Chemical Assay; Measurement Science and Technology; 2004; pp. 137-142; vol. 15; Institute of Physics Publishing; U.K.
Xi et al; Axial-Beam On-Column Absorption Detection for Open Tubular Capillary Liquid Chromatography; Anal. Chem.; 1990; pp. 1580-1585; vol. 62; American Chemical Society; USA.
Foster et al; Liquid Chromatographic Sensing in Water on a Thin-Clad Optical Fiber by Mode-Filtered Light Detection; Anal. Chem.; 1996; pp. 1456-1463; vol. 68; American Chemical Society; USA.
Khomenko et al; Wavelength-Scanning Technique for Distributed Fiber-Optic Sensors; Optics Letters; Dec. 1, 1993; pp. 2065-2067; vol. 18, No. 23; Optical Society of America.
Jinno et al; Recent Trends in Open-Tubular Capillary Electrochromatography; Trends in Analytical Chemistry; 2000; pp. 664-675; vol. 19, No. 11; Elsevier Science B.V.
Matejec et al; Improvement of the Sectorial Fiber for Evanescent-Wave Sensing; Sensors and Actuators B; 1997; pp. 334-338; vol. 38-39; Elsevier Science S.A.

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