Optical waveguides – With optical coupler – Particular coupling function
Reexamination Certificate
2006-10-23
2010-02-23
Rojas, Omar (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling function
C385S050000, C385S012000
Reexamination Certificate
active
07668419
ABSTRACT:
Method and apparatus enable optical evanescent sensing utilizing a waveguide with an annular core. The annular core can provide detectable sensitivity to a measurand due to optical interactions with contents along an inside surface of the annular core since optical properties of the contents vary with changes in the measurand.
REFERENCES:
patent: 3819250 (1974-06-01), Kibler
patent: 4201446 (1980-05-01), Geddes et al.
patent: 5319435 (1994-06-01), Melle et al.
patent: 5945666 (1999-08-01), Kersey et al.
patent: 6269207 (2001-07-01), Carberry et al.
patent: 6836606 (2004-12-01), Abeeluck et al.
patent: 7409133 (2008-08-01), Dimmick et al.
patent: 2 037 448 (1980-07-01), None
patent: 2 190 741 (1987-11-01), None
patent: WO 97/35220 (1997-09-01), None
Olivier Parriaux and G. J. Veldhuis, “Normalized Analysis for the Sensitivity Optimization of Integrated Optical Evanescent-Wave Sensors,” Journal of Lightwave Technology, vol. 16, No. 4, Apr. 1998, pp. 573-582.
Ainhoa Gaston, Ibon Lozano, Fatima Perez, Fernando Auza, and Joaquin Sevilla, “Evanescent Wave Optical-Fiber Sensing (Temperature, Relative Humidity, and pH Sensors),” IEEE Sensors Journal, vol. 3, No. 6, Dec. 2003, pp. 806-811.
X. Chen, K. Zhou, L. Zhang, and I. Bennion, “Optical Chemsensors Utilizing Long-Period Fiber Gratings UV-Inscribed In D-Fiber With Enhanced Sensitivity Through Cladding Etching,” IEEE Photonics Technology Letters, vol. 16, No. 5, May 2004, pp. 1352-1354.
Kyunghwan Oh, S. Choi, Yongmin Jung, and Jhang W. Lee, “Novel Hollow Optical Fibers and Their Applications in Photonic Devices for Optical Communications,” Journal of Lightwave Technology, vol. 23, No. 2, Feb. 2005 pp. 524-532.
Athanasios N. Chryssis, Sang M. Lee, Sang B. Lee, Simarjeet S. Saini, and Mario Dagenais, “High Sensitivity Evanescent Field Fiber Bragg Grating Sensor,” IEEE Photonics Technology Letters, vol. 17, No. 6, Jun. 2005, pp. 1253-1255.
Sameer M. Chandani and Nicolas A. F. Jaeger, “Fiber-Optic Temperature Sensor Using Evanescent Fields in D Fibers,” IEEE Photonics Technology Letters, vol. 17, No. 12, Dec. 2005, pp. 2706-2708.
U.K. Search Report, Application No. GB0720602.2, dated Jan. 29, 2008.
Dowd Edward M.
Taverner Domino
Patterson & Sheridan LLP
Rojas Omar
Weatherford / Lamb, Inc.
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