FIBER BRAGG GRATING ELEMENT

PROBLEM TO BE SOLVED: To obtain a high cut off quantity exceeding 40 dB in a broad band exceeding 1nm with a simple structure. SOLUTION: An FBG part 40 filters at a high cut off of a light input exceeding 40 dB in a broad band exceeding 1nm, a photosensitive material having a sensitivity to ultravio...

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Bibliographic Details
Main Authors OTA IKUO, OTA TOSHIHIKO, INUKAI TOSHIYUKI, YODO SHIGETO
Format Patent
LanguageEnglish
Published 21.07.2005
Edition7
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MEASURING
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
TRANSMISSION
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Summary:PROBLEM TO BE SOLVED: To obtain a high cut off quantity exceeding 40 dB in a broad band exceeding 1nm with a simple structure. SOLUTION: An FBG part 40 filters at a high cut off of a light input exceeding 40 dB in a broad band exceeding 1nm, a photosensitive material having a sensitivity to ultraviolet light is provided in a clad region 42 and a chart Bragg grating which is the same as a core region 41 is formed. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20040004814