OPTICAL LINE TESTING AND MONITORING SYSTEM

PROBLEM TO BE SOLVED: To provide an optical line testing and monitoring system capable of being applied to a communication system using a wavelength of a wide band by realizing the optical coupler module of small reflection, having the precipitous filter blocking characteristic. SOLUTION: In this op...

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Bibliographic Details
Main Authors ARAKI NORIYUKI, IZUMIDA CHIKASHI, HONDA NAGETSU
Format Patent
LanguageEnglish
Published 27.08.2003
Edition7
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MEASURING
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 provide an optical line testing and monitoring system capable of being applied to a communication system using a wavelength of a wide band by realizing the optical coupler module of small reflection, having the precipitous filter blocking characteristic. SOLUTION: In this optical line testing and monitoring system comprising the optical coupler module 12 for inputting and outputting the test light to an optical fiber 4 connecting light transmitters 2, 3, the filter 13 mounted just before the optical transmitter 3, transmitting the transmission light, and blocking the test light, a light measuring unit 18 for measuring the optical fiber 4, a test controller 19 for controlling the light measuring unit 18, and an operation terminal 8 for operating the test controller 19, and fiber Bragg grating filters 15a, 15b are respectively held between ports of each of two four-port optical circulator 14a, 14b arranged in series in the optical coupler module 12. COPYRIGHT: (C)2003,JPO
Bibliography:Application Number: JP20020037671