Optical waveguides – Optical fiber waveguide with cladding – Utilizing nonsolid core or cladding
Reexamination Certificate
2008-03-11
2008-03-11
Healy, Brian (Department: 2883)
Optical waveguides
Optical fiber waveguide with cladding
Utilizing nonsolid core or cladding
C385S012000, C385S129000, C385S132000, C250S227110
Reexamination Certificate
active
11711199
ABSTRACT:
An optical waveguide environmental sensor is provided that is capable of detecting a target gas or liquid in the ambient environment in an advantageously short period of time. The waveguide is preferably in the form of an optical fiber having a cladding that contains a photonic band gap structure which in turn envelopes a light conducting, hollow core portion. The cladding further includes at least one elongated side opening that preferably extends the entire length of the fiber and exposes said hollow core portion to the ambient environment, which provides broad and nearly immediate access of the core portion to gases and liquids in the ambient environment, thereby minimizing sensor response time. The ambient gases or liquids filling the hollow core portion and elongated opening function as a ridge and slab, respectively, of an optical ridge waveguide that effectively supports at least one bound optical mode.
REFERENCES:
patent: 6151155 (2000-11-01), Durfee et al.
patent: 6496634 (2002-12-01), Levenson
patent: 2003/0065091 (2003-04-01), Brann et al.
patent: 2004/0179796 (2004-09-01), Jakobsen et al.
patent: 2005/0047741 (2005-03-01), Sfez
patent: 2006/0088265 (2006-04-01), Akiyama et al.
patent: 2006/0098927 (2006-05-01), Schmidt et al.
“Resonant Optical Interactions with Molecules Confined in Photonic Band-Gap Fibers”, Ghosh, et al; Physical Review Letters; Mar. 11, 2005; pp. 1-4.
“Polarization-selective etching in femtosecond laser-assisted microfluidic channel fabrication in fused silica”; Hnatovsky et al; Jul. 15, 2005; vol. 30, No. 14; Optics Letters; pp. 1867-1869.
“Ultrahigh Efficiency Laser Wavelength Conversion in a Gas-Filled Hollow Core Photonic Crystal Fiber by Pure Stimulated Rotational Raman Scattering in Molecular Hydrogen”; Benabid et al; vol. 93; No. 12; Physical Review Letters; Sep. 17, 2004.
“Microfluidic sensor based on integrated optical hollow waveguides”; Campopiano et al; Optics Letters; vol. 29, No. 16; Aug. 15, 2004; pp. 1894-1896.
“Microstructure fibres for optical sensing in gases and liquids”; Institute of Physics Publishing; Fini; pp. 1120-1128; published May 13, 2004.
“A review of IR transmitting, hollow waveguides”; Fiber and Integrated Optics, 19, 211-217 (2000); Harrington.
“Measurement of Gas Diffusion Coefficient Using Photonic Crystal Fiber”; IEEE Photonics Technology Letters; vol. 15, No. 10, Oct. 2003, Hoo et al.
“Photonic crystal fiber based evanescent-wave sensor for detection of biomolecules in aqueous solutions”; Jensen et al; Optics Letters, vol. 29, No. 17; Sep. 1, 2004; pp. 1974-1976.
“Semiconductor hollow optical waveguides formed by omni-directional reflectors”; Lo et al; Optics Express; Dec. 27, 2004; vol. 12, No. 26; p. 6589-6593.
“Water-Core Fresnel fiber”; Martelli et al; Optics Express; May 16, 2005; vol. 13, No. 10; pp. 3890-3895.
“Gas sensing using air-guiding photonic bandgap fibers”; Ritari et al; Optics Express; Aug. 23, 2004; vol. 12, No. 17; pp. 4080-4087.
“Optical Transmission Loss in Liquid-Core Hollow Fibers”; Stone; IEEE Journal of Quantum Electronics; Mar. 1972; p. 386-388.
“A long pathlength liquid-core waveguide sensor for real-time pCO2 measurements at sea”; Wang et al; Marine Chemistry 84 (2003) 73-84.
“Integrated ARROW waveguides with hollow cores”; Schmidt et al; Optics Express, Jun. 14, 2004; vol. 12, No. 12; pp. 2710-2715.
“Femtosecond laser-assisted three-dimensional microfabrication in silica”; 2001 Optical Society of America; Optics Letters; Mar. 1, 2001; vol. 26, No. 5; pp. 277-279.
“Stimulated Raman Scattering in Hydrogen-Filled Hollow-Core Photonic Crystal Fiber”; Benabid et al; Science; Oct. 11, 2002; vol. 298; pp. 399-402.
Gallagher Michael Thomas
Koch, III Karl William
West James Andrew
Williams Ellen Marie Kosik
Corning Incorporated
Healy Brian
Lam Hung
Short Svetlana Z.
LandOfFree
Optical waveguide environmental sensor and method of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical waveguide environmental sensor and method of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical waveguide environmental sensor and method of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3903746