Method for forming optical fiber preforms

Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – Process of manufacturing optical fibers – waveguides – or...

Reexamination Certificate

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C065S412000, C065S421000, C065S413000, C065S392000

Reexamination Certificate

active

07905114

ABSTRACT:
Optical fiber preforms can comprise a glass preform structure with an inner cavity. A powder can be placed within the inner cavity having an average primary particle size of less than about one micron. The powder can be in the form of an unagglomerated particles or a powder coating with a degree of agglomeration or hard fusing ranging from none to significant amounts as long as the primary particles are visible in a micrograph. Powders can be placed within a preform structure by forming a slurry with a dispersion of submicron
anoscale particles within a cavity within the preform. In other embodiments, a powder coating is formed within a preform structure by depositing the powder coating directly from a reaction product stream. The formation of the powder coating can be formed within the reaction chamber or outside of the reaction chamber by flowing the product particle stream through a conduit leading to the preform structure. In additional embodiments, a powder coating is placed on an insert, e.g., a glass insert, that is subsequently placed within a preform structure.

REFERENCES:
patent: 3932162 (1976-01-01), Blankenship
patent: 3957474 (1976-05-01), Kobayashi et al.
patent: 4263031 (1981-04-01), Schultz
patent: 4417911 (1983-11-01), Cundy et al.
patent: 4501602 (1985-02-01), Miller et al.
patent: 4556416 (1985-12-01), Kamijo et al.
patent: 4565682 (1986-01-01), Loskot et al.
patent: 4596589 (1986-06-01), Perry
patent: 4599098 (1986-07-01), Sarkar
patent: 4610892 (1986-09-01), Eisbrenner et al.
patent: 4630890 (1986-12-01), Ashkin et al.
patent: 4664690 (1987-05-01), Kyoto et al.
patent: 4684384 (1987-08-01), Berkey
patent: 4749396 (1988-06-01), Hicks, Jr.
patent: 5474588 (1995-12-01), Tanaka et al.
patent: 5655046 (1997-08-01), Todroki et al.
patent: 5958348 (1999-09-01), Bi et al.
patent: 5989514 (1999-11-01), Bi et al.
patent: 6128430 (2000-10-01), Chu et al.
patent: 6136287 (2000-10-01), Horne et al.
patent: 6192713 (2001-02-01), Zhang et al.
patent: 6193936 (2001-02-01), Gardner et al.
patent: 6506493 (2003-01-01), Kumar et al.
patent: 6919054 (2005-07-01), Gardner et al.
patent: 2002/0056291 (2002-05-01), Schultz et al.
patent: WO 99/61244 (1990-12-01), None
patent: WO 00/54291 (2000-09-01), None
patent: WO 01/07155 (2001-02-01), None
patent: WO 01/32799 (2001-05-01), None
patent: WO 02/32588 (2002-04-01), None
patent: WO 02/44765 (2002-06-01), None
patent: WO 02/058928 (2002-08-01), None
patent: WO 02/088019 (2002-11-01), None
patent: WO 02/089233 (2002-11-01), None
Merriam Webster's Collegiate Dictionary (10thedition) 1997, p. 730.
Bi et al., “Three Dimensional Engineering of Planar Optical Structures,” U.S. Appl. No. 10/027,906, filed Dec. 21, 2002, 131 pages (application & drawings as filed).
Bryan, “Reactive Deposition for the Formation of Chip Capacitors,” U.S. Appl. No. 10/219,019, filed Aug. 14, 2002, 43 pages (application & drawings as filed).
Gardner et al., “Reactant Nozzles Within Flowing Reactors,” U.S. Appl. No. 10/119,645, filed Apr. 10, 2002, 71 pages (application & drawings as filed).
Horne et al., “Optical Materials and Optical Devices,” U.S. Appl. No. 10/099,597, filed Mar. 15, 2002, 142 pages (application & drawings as filed).
Ballato et al., “Fabrication of Fibers with High Rare-Earth Concentrations for Faraday Isolator Application,” Applied Optics, vol. 34, No. 30, pp. 6848-6854, Oct. 20, 1995.

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