Holey optical fibres of non-silica based glass

Details Holey optical fibres of non-silica based glass Holey optical fibres of non-silica based glass

2006-12-26

2006-12-26

Wood, Kevin S. (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

Utilizing nonsolid core or cladding

C385S128000, C065S393000

Reexamination Certificate

active

07155099

ABSTRACT:
To overcome problems of fabricating conventional core-clad optical fibre from non-silica based (compound) glass, it is proposed to fabricate non-silica based (compound) glass optical fibre as holey fibre i.e. one contining Longitudinal holes in the cladding. This removes the conventional problems associated with mismatch of the physical properties of the core and clad compound glasses, since a holey fibre can be made of a single glass composition. With a holey fibre, it is not necessary to have different glasses for the core and cladding, since the necessary refractive index modulation between core and cladding is provided by the microstructure of the clad, i.e. its holes, rather than by a difference in materials properties between the clad and core glasses. Specifically, the conventional thermal mismatch problems between core and clad are circumvented. A variety of fibre types can be fabricated from non-silica based (compounds) glasses, for example: single-mode fibre; photonic band gap fibre; highly non-linear fibre; fibre with photosensitivity written gratings and other refractive index profile structures; and rare-earth doped fibres (e.g. Er, Nd, Pr) to provide gain media for fibre amplifiers and lasers.

REFERENCES:
patent: 4410344 (1983-10-01), Iyengar
patent: 4764194 (1988-08-01), Maklad
patent: 5026142 (1991-06-01), Worrell et al.
patent: 5093287 (1992-03-01), Borrelli et al.
patent: 5802236 (1998-09-01), DiGiovanni et al.
patent: 5822479 (1998-10-01), Napier et al.
patent: 0 060 085 (1982-09-01), None
patent: 0 249 886 (1987-12-01), None
patent: 0 810 453 (1997-12-01), None
patent: 0 843 186 (1998-05-01), None
patent: 98/08120 (1998-02-01), None
patent: 99/00685 (1999-01-01), None
patent: 00/16141 (2000-03-01), None
patent: 00/49436 (2000-08-01), None
patent: 00/60388 (2000-10-01), None
Monroe et al., “Chalcogenide holey fibre.”Electronics Letters. 36.24 (2000).
Database Inspec ′Online! “A robust, large air fill fraction holey fibre.”The Institution of Electrical Engineers. Inspec No. 65123600, 1999.
Hewak, Daniel et al. “Photonic Applications of Sulphide Glass Optical Fibres.”11thInternational Conference on Integrated Optics and Optical Fibre Communications. IEE Conference Publication, 1.448 (1997):65-66.
Monro, Tanya et al. “Holey Optical Fibers: An Efficient Modal Model.”Journal of Lightwave Technology. 17.6 (1999):1093-1102.
West, Y.D. et al. “Gallium Lanthanum Sulphide Fibers for Infrared Transmission.”Fiber and Integrated Optics. 19 (2000):299-250.
Birks, T.A. et al. “Four-port fiber frequency shifter with a null taper coupler.”Optics Letters. 19.23 (1994):1964-1967.
Yun, Seok Hyun et al. “All-fiber Acoustooptic Filter with Low-Polarization Sensitivity and No Frequency Shift.”IEEE Photonics Technology Letters. 9.4 (1997): 461-463.

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