Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – Process of manufacturing optical fibers – waveguides – or...
Reexamination Certificate
2005-02-22
2011-10-11
Daniels, Matthew (Department: 1741)
Glass manufacturing
Processes of manufacturing fibers, filaments, or preforms
Process of manufacturing optical fibers, waveguides, or...
C065S376000
Reexamination Certificate
active
08033142
ABSTRACT:
The method for fabricating an optical fiber comprises the steps of inserting a primary optical fiber preform (11) having a first primary axis (x1) and an outer surface (111) into an overcladding tube (12) having a second primary axis (x2) and an inner surface (120), so that said outer surface and inner surface define an interior space (15); holding the primary preform (11) in a centrally inserted position within the overcladding tube (12) with said first and second primary axes (x1, x2) in substantial alignment with each other; supplying overcladding grain (13) into the interior space (15) that is limited at the lower end of the overcladding tube (12) by means of a closure (125); generating a condition of reduced pressure within the interior space (15) that is limited at the upper end of the overcladding tube (12) by means of an adjoiner (3), which holds the primary optical fiber preform (11) and the overcladding tube (12) in position; and heating the unprocessed secondary preform (1), that consists of the primary preform (11), the overcladding tube (12) and the overcladding grain (13), at its lower end to a softened state and simultaneously or subsequently drawing an optical fiber therefrom.
REFERENCES:
patent: 2980957 (1961-04-01), Hicks
patent: 4820322 (1989-04-01), Baumgart et al.
patent: 6047568 (2000-04-01), Campion
patent: 6334338 (2002-01-01), Mandich et al.
patent: 6519974 (2003-02-01), Oh et al.
patent: 6626011 (2003-09-01), Chiquet et al.
patent: 2004/0050110 (2004-03-01), Berkey et al.
patent: 2005/0204780 (2005-09-01), Moridaira et al.
patent: 2007/0214841 (2007-09-01), Pedrido
patent: 39 21 489 (1991-01-01), None
patent: 0 553 868 (1993-08-01), None
patent: 0 695 003 (1996-01-01), None
patent: 58 104031 (1983-06-01), None
patent: 58 151336 (1983-09-01), None
patent: 61 132535 (1986-06-01), None
patent: 09-124332 (1997-05-01), None
patent: 09 124332 (1997-05-01), None
patent: 03/093884 (2003-11-01), None
Towaga et al. JP 09-124332 online translation as provided by http://dossier1.ipdl.inpit.go.jp/AIPN/aipn—call—transl.ipdl?N0000=7413&N0120=01&N2001=2&N3001=1997-124332&Ntt3=machineV13&Ntt4=industryV13&Ntt5=gakujutsuV13&Ntt6=&Ntt7=&Ntt8=&Ntt9=&Ntt10=&Ntt11=&Ntt12= on Mar. 11, 2010.
Handbook of Photonics, Mool C. Gupta Editor in Chief, ISBN0-8493-8909-7 CRC Press, LLC. Boca Raton, FL, TA1520.H37 1996, pp. 445-449.
Cohen Jodi F
Daniels Matthew
Oliff & Berridg,e PLC
Silitec SA
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