Stable fiber optic polarizer

Details Stable fiber optic polarizer Stable fiber optic polarizer

1984-03-16

1987-05-19

Lee, John

350 9629, 350395, 350406, G02B 530

Patent

active

046662359

ABSTRACT:
This invention relates to fiber optic apparatus and methods for polarizing light for use in fiber optic devices, such as rotation sensors. A phase grating formed of alternating layers of dielectrics having different indices of refraction is placed adjacent a half coupler that includes a fiber having a cladding thickness which forms an interaction region. The evanescent field of light of a selected polarization interacts with the phase grating to cople out of the fiber while light of a second selected polarization remains in the fiber.

REFERENCES:
patent: 3625589 (1971-12-01), Snitzer
patent: 3645603 (1972-02-01), Smith
patent: 4089582 (1978-05-01), Mahlein et al.
patent: 4139262 (1979-02-01), Mahlein et al.
patent: 4268116 (1981-05-01), Schmadel et al.
patent: 4386822 (1983-06-01), Bergh
patent: 4389090 (1983-06-01), LeFevre
patent: 4410275 (1983-10-01), Shaw et al.
patent: 4431260 (1984-02-01), Palmer
patent: 4456377 (1984-06-01), Shaw et al.
patent: 4461574 (1984-07-01), Shaw et al.
patent: 4515441 (1985-05-01), Wentz
patent: 4529312 (1985-07-01), Pavlath et al.
patent: 4583818 (1986-04-01), Chen et al.
patent: 4589728 (1986-05-01), Dyott et al.
Eickhoff, "In-Line Fibre-Optic Polariser", Electronics Lett., vol. 16, No. 20, Sep. 1980, pp. 762-764.
Hosaka et al, "Single-Mode Fiber-Type Polarizer", IEEE J. Quantum Electronics, vol. QE-18, No. 10, Oct. 1982, pp. 1569-1572.
Hosaka et al, "Fabrication of Single-Mode Fiber-Type Polarizer", Optics Letters, vol. 8, No. 2, Feb. 1983, pp. 124-126.
Johnson, M., "In-Line Fiber-Optical Polarization Transformer", Appl. Optics, vol. 18, No. 9, May 1, 1979, pp. 1288-1289.
Mohr, F. A. & Scholz, U. "Polarization Control for an Optical Fiber Gyroscope", Fiber Optic Rotation Sensors and Related Technology, Springer Verlag, 1982, pp. 163-168.
Alekseev et al., "Polarization Modulation of the Radiation in a Single-Mode Fiber Lightguide", Pisma Zh. Tekh. Fiz. 5, Jul. 26, 1979, pp. 887-890.
Ulrich, R., "Polarization Stabilization on Single-Mode Fiber" Appl. Phys. Lett., 35(11), Dec. 1, 1979, pp. 840-842.
Kintner, E. C., "Polarization Problems in Optical Fiber Gyroscopes", Applied Optics, pp. 78-81.
LeFevre et al., "Progress in Optical Fiber Gyroscopes Using Integrated Optics".
Gruchmann et al., "Fibre-Optic Polarizers with High Extinction Ratio" Elsewier Science Publishers B.V. 1983, pp. 305-308.
Pavlath et al., Fiber Optic Gyroscopes: Advances and Future Developments, Navigation: Journal of the Institute of Navigation, vol. 31, No. 2, Summer 1984, pp. 70-83.
Flanders, Submicrometer Periodicity Gratings as Artificial Anisotropic Dielectrics, Applied Physics Letters, 42 (6), Mar. 1983, pp. 492-494.

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