Optical waveguides – Optical fiber waveguide with cladding
Patent
1991-06-06
1992-08-04
Lee, John D.
Optical waveguides
Optical fiber waveguide with cladding
65311, 385120, 385142, G02B 616
Patent
active
051366770
ABSTRACT:
The photorefractive effect results in a change in the refractive index of bulk chalcogenide glass when it is exposed to certain wavelengths of light, in particular, sub-band-gap light. The effect results in a variety of device structures including a fiber optic faceplate; an optical waveguide; a fiber tap; a lens and a Bragg grating. Methods for fabricating the various devices are described.
REFERENCES:
patent: 3297388 (1967-01-01), Woodcock et al.
patent: 3689264 (1972-09-01), Chandross et al.
patent: 3809686 (1974-05-01), Chandross et al.
patent: 4644519 (1987-02-01), Markvoort et al.
patent: 4908053 (1990-03-01), Nishii et al.
patent: 5028105 (1991-07-01), Drexhage et al.
Ohmachi, "Laser-Induced Refractive-Index Change in As-S-Ge Glasses", Appl. Phys. Lett., vol. 20 No. 12, 1972.
Kapny et al., "Recent Developments in Infrared Fiber Optics", Optics Technology, Inc., Belmont, Calif. (1964).
DeNeufville et al., Photostructural Transformations in Amorphous As2Se3 and As2S3 Films, Journal of Non-Crystalline Solids, 13 191-233 (1973).
Kanamori et al., Chalcogenide Glass Fibers for Mid-Infrared Transmission, Journal of Lightwave Technology, vol. LT-2, No. 5 (1984).
Tanaaka et al., Photo-optical devices by amorphous As-S waveguides, J. Appl. Phys. 57 (11) (1985).
Tanaka, Reversible Photostructural Change: Mechanisms, Properties and Applications, Journal of Non-Crystalline Solids, 35 & 36 (1980).
Lyubin, Photostructural Changes in Chalcogenide Glasses, Journal of Non-Crystalline Solids, 97 & 98 (1987).
Keneman, Hologram Storage in Arsenic Trisulfide Thin Films, Applied Physics Letters, vol. 19, No. 6 (1971).
Ohmachi et al., Laser-Induced Refractive-Index Change in As-S-Ge Glasses, Appl. Phys. Lett., vol. 20, No. 12, 15 (1972).
Singh et al., Effect of temperature on diffraction efficiency of holograms recorded in arsenic trisulphide thin films, Optica Acta, vol. 31, No. 10 (1984).
Lee et al., Reversible recording and erasure of holograms in photodarkened As2S3 thin film, Applied Optics, vol. 25, No. 24 (1986).
Brandes et al., Optically Formed Dielectric Gratings in Thick Films of Arsenic Sulfur Glass, J. Opt. Soc. Am 68 32 (1970).
Tanaka, Photo-Induced Dynamical Changes in Refractive Index in Amorphous As-S Films, Solid State Communications, vol. 28, pp. 541-545 (1978).
Tanaka, Transient-grating study of amorphous As2S3 films, J. Appl. Phys. 65 (5) (1989).
Zembutsu et al., Photosensitive As-Se-S-Ge Amorphous Films and Some Applications to Optical Waveguide Device, IOOC (1977) A8-5.
Mizushima et al., Photostructural Change of Amorphous Chalcogenide Films Applied to Lithography, IOOC (1977) 02-3.
Nishihara, Direct Writing Technique Using a Scanning Electron Microscope: Fabrication of Optical Gratings in Amorphous Chalcogenide Films, IOOC (1977) 02-4.
McCormick, Generation of large spot arrays from a single laser beam by multiple imaging with binary phase gratings, Optical Engineering, vol. 28, No. 4 (1989).
Tanaka, Relations Between Dynamical and Reversible Photo induced Changes, Journal of Non-Crystalline Solids 35 & 36 (1980).
Tanaka, Composition Dependence of Photo-Induced Refractive Index Changes in Amorphous As-S Films, Thin Solid Films, 37 (1979).
Fleury, Coherence and Energy Transfer in Glasses, pp. 281-309, Plenum Press (1984).
Cook Lee M.
Drexhage Martin G.
Margraf Tracey L.
Moynihan Cornelius T.
Barns Stephen W.
Galileo Electro-Optics Corporation
Lee John D.
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