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1. (WO2003058303) ACOUSTO-OPTIC TUNABLE APPARATUS HAVING A FIBER BRAGG GRATING AND AN OFFSET CORE

Pub. No.:    WO/2003/058303    International Application No.:    PCT/US2002/041211
Publication Date: Jul 17, 2003 International Filing Date: Dec 20, 2002
IPC: G02B 6/14
G02B 6/34
G02F 1/125
H04J 14/02
Applicants: NOVERA OPTICC, INC.
Inventors: SORIN, Wayne, V.
KIM, Byoung, Yoon
Title: ACOUSTO-OPTIC TUNABLE APPARATUS HAVING A FIBER BRAGG GRATING AND AN OFFSET CORE
Abstract:
A method and apparatus that microbend a fiber Bragg grating (108, 308, 410a, 410b, 510, 524) with a transverse acoustic wave. The fiber Bragg grating reflects one or more Nth order sidebands (124, 324) of reflection wavelengths (128, 342) an optical signal in order to couple the band of wavelengths ( 532, 534, 536, 538) within an optical signal from a first mode to a second mode. The fiber Bragg grating forms part of an optical waveguide ( 104, 104a, 104b, 104c, 406a, 406b, 506) having a cladding (110, 134a, 134b, 134c, 312, 412a, 412b, 512, 526) and a core (112, 112a, 112b, 112c, 310, 414a, 414b, 514, 528) offset in respect to the cladding.