Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – Process of manufacturing optical fibers – waveguides – or...
Reexamination Certificate
2005-03-08
2005-03-08
Chin, Peter (Department: 1731)
Glass manufacturing
Processes of manufacturing fibers, filaments, or preforms
Process of manufacturing optical fibers, waveguides, or...
C065S399000, C065S415000, C065S417000, C065S421000
Reexamination Certificate
active
06862900
ABSTRACT:
A method and apparatus for forming a glass article such as an optical fiber having a substantially matching viscosity across an interface associated with a first section and a second section of the optical fiber is disclosed herein. The first section has a first halogen concentration and the second section has a second halogen concentration. At least one of a partial pressure of the second halogen provided to a substrate tube and a temperature of the substrate tube is configured to affect the concentration of the second halogen in the second section. Optical fiber embodiments are also included.
REFERENCES:
patent: 4233045 (1980-11-01), Sarkar
patent: 4312654 (1982-01-01), Sarkar
patent: 4417911 (1983-11-01), Cundy et al.
patent: 4693738 (1987-09-01), Hoshikawa et al.
patent: 4813989 (1989-03-01), Uchiyama et al.
patent: 5022904 (1991-06-01), Ishiguro et al.
patent: 5242476 (1993-09-01), Bartel et al.
patent: 6116055 (2000-09-01), Ishikawa et al.
patent: 6192713 (2001-02-01), Zhang et al.
patent: 6535679 (2003-03-01), Yokoyama et al.
T. Miya et al.,Ultimate Low-Loss Single-Mode Fibre at 1-55 μm, Electronics Letters, pp. 106-108, vol. 15-No. 4, Feb. 15, 1979.
H. Wehr and D. Wiechert,Refractive Index and Density of Fluorine Doped Silica Prepared by the PCVD Process, Materials Research Bulletin, pp. 559-566, vol. 21-No. 5, May 1986.
de Sandro Jean-Philippe J.
House Keith L.
Koh Joohyun
Mazumder Prantik
Chin Peter
Corning Incorporated
Foley & Lardner
Wayland Randall S.
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