LIGHT WAVELENGTH METER

PROBLEM TO BE SOLVED: To provide a small-sized light wavelength meter capable of enhancing flexibility on an operation of an existing optical communication equipment. SOLUTION: This light wavelength meter of the present invention allows an input light signal to be output as a different output with a...

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Bibliographic Details
Main Authors CAO HONG-XI, KYO SEMEI
Format Patent
LanguageEnglish
Published 15.09.2005
Edition7
Subjects
COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
PHYSICS
RADIATION PYROMETRY
TESTING
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Summary:PROBLEM TO BE SOLVED: To provide a small-sized light wavelength meter capable of enhancing flexibility on an operation of an existing optical communication equipment. SOLUTION: This light wavelength meter of the present invention allows an input light signal to be output as a different output with a different wavelength, by using characteristics of a wide wavelength range and low sensitivity and a narrow wavelength range and high sensitivity respectively in two interferometers. The interferometer of the wide wavelength range and low sensitivity confirms a rough range of a wavelength of the light signal, and then a wavelength of an incident beam is measured accurately by the interferometer of the narrow wavelength range and high sensitivity. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20040281596