Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – Process of manufacturing optical fibers – waveguides – or...
Patent
1998-02-26
1999-11-30
Hoffmann, John
Glass manufacturing
Processes of manufacturing fibers, filaments, or preforms
Process of manufacturing optical fibers, waveguides, or...
65425, 2504921, 430290, 430321, C03B 37018
Patent
active
059921811
ABSTRACT:
A method of manufacturing an optical fiber having a core portion doped with a dopant and a surrounding optical cladding portion is disclosed. The method comprises the steps of drawing a fiber from a molten extremity of a silica preform and moving the fiber along towards a device for coating it with a protective sheath. Prior to the coating step, the moving fiber is irradiated with irregularly modulated actinic radiation, thereby causing corresponding irregular variations in the refractive index of its core portion as a function of longitudinal position. The resulting fiber demonstrates a significantly reduced polarisation mode dispersion.
REFERENCES:
patent: 4129433 (1978-12-01), Jaeger
patent: 5298047 (1994-03-01), Hart, Jr. et al.
patent: 5400420 (1995-03-01), Askin et al.
Foreign Search Report dated Apr. 2, 1996 (Internation Application No. PCT/IB/96100060.
"Fiber Laser Sources and Amplifiers II", by Russell et al., SPIE Conf. Pro. Vol. 1373 (1990), Fiber Laser Sources and Amplifiers II, pp. 126-139.
Hoffmann John
Plasma Optical Fibre B.V.
LandOfFree
Method of randomly irradiating an optical fiber core with a lase does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of randomly irradiating an optical fiber core with a lase, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of randomly irradiating an optical fiber core with a lase will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1658425