Chiral fiber grating

Details Chiral fiber grating Chiral fiber grating

2005-01-04

2005-01-04

Williams, Joseph (Department: 2879)

Optical waveguides

With optical coupler

Input/output coupler

C385S123000

Reexamination Certificate

active

06839486

ABSTRACT:
A a chiral fiber grating mimicking a cholesteric liquid crystal structure to achieve fiber Bragg grating properties, is provided. The chiral fiber grating includes a first and a second helical structures disposed along its central longitudinal axis, where the second helical structure is identical in orientation to the first helical structure but is shifted by one half of the structure's pitch forward. In another embodiment of the invention, only a single helical structure is disposed along the fiber to create an optically resonant chiral fiber.

REFERENCES:
patent: 4630889 (1986-12-01), Hicks, Jr.
patent: 5361320 (1994-11-01), Liu et al.
patent: 6115526 (2000-09-01), Morse
patent: 6314224 (2001-11-01), Stevens et al.
patent: 6493486 (2002-12-01), Chen
patent: 6671293 (2003-12-01), Kopp et al.
patent: 6721469 (2004-04-01), Kopp et al.
patent: 6735985 (2004-05-01), DiGiovanni et al.

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