Refractive index grating manufacturing process
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 11, 2003
Grant Date -
Feb 27, 2003
app pub date -
Mar 13, 2001
filing date -
Mar 13, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for manufacturing an optical fiber refractive index grating. The method comprises the steps of, providing a substantially twist-free length of an optical fiber between a first spool and a second spool before attaching the first spool and the second spool to a support having a first surface opposite a second surface. The support and spools provide a filament organizer including the first spool as a lockable spool and the second spool as a rotary spool. The filament organizer further comprises a tensioner coupled to the rotary spool to apply tension to at least a central portion of the length of an optical fiber disposed between the lockable spool and the rotary spool. After removing a buffer coating from the central portion of an optical fiber and applying a controlled tension to the central portion of the optical fiber, changes are made to the refractive index characteristics of the central portion during exposure to an interference pattern of high intensity actinic radiation, to produce the refractive index grating.
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