Optical spectrum analyzer
An optical spectrum analyzer includes a diffraction-grating control unit configured to change an angle of a diffraction grating to change a wavelength of a dispersed light beam extracted from incident light, a calculator unit configured to calculate an angle of the diffraction grating such that the...
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Format | Patent |
Language | English |
Published |
11.09.2012
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Subjects | |
Online Access | Get full text |
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Abstract | An optical spectrum analyzer includes a diffraction-grating control unit configured to change an angle of a diffraction grating to change a wavelength of a dispersed light beam extracted from incident light, a calculator unit configured to calculate an angle of the diffraction grating such that the wavelength of the dispersed light beam has a sampling wavelength, and to store the data indicating the angle, a FIFO memory configured such that part of the data is inputted to it, for outputting the data at each reception of a trigger signal indicating timing of sampling, and an FIFO memory control unit configured to output the subsequent data to the FIFO memory, when a remaining data amount of the FIFO memory reaches a predetermined value or lower. |
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AbstractList | An optical spectrum analyzer includes a diffraction-grating control unit configured to change an angle of a diffraction grating to change a wavelength of a dispersed light beam extracted from incident light, a calculator unit configured to calculate an angle of the diffraction grating such that the wavelength of the dispersed light beam has a sampling wavelength, and to store the data indicating the angle, a FIFO memory configured such that part of the data is inputted to it, for outputting the data at each reception of a trigger signal indicating timing of sampling, and an FIFO memory control unit configured to output the subsequent data to the FIFO memory, when a remaining data amount of the FIFO memory reaches a predetermined value or lower. |
Author | HORIGUCHI ATSUSHI |
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Notes | Application Number: US201113092305 |
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PublicationDateYYYYMMDD | 2012-09-11 |
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PublicationYear | 2012 |
RelatedCompanies | HORIGUCHI ATSUSHI YOKOGAWA ELECTRIC CORPORATION |
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Snippet | An optical spectrum analyzer includes a diffraction-grating control unit configured to change an angle of a diffraction grating to change a wavelength of a... |
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SubjectTerms | COLORIMETRY MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PHYSICS RADIATION PYROMETRY TESTING |
Title | Optical spectrum analyzer |
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