Laser frequency measurement method and device using optical frequency comb

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United States of America Patent

PATENT NO 9995634
APP PUB NO 20160011055A1
SERIAL NO

14791825

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Abstract

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To measure the frequency of a laser, the frequency of a beat signal that is generated by the interference between an optical frequency comb, used as the reference of measurement, and the laser to be measured is measured. In such a laser frequency measurement using the optical frequency comb, at least one of a repetition frequency and a CEO frequency of the optical frequency comb is changed so that the frequency of the beat signal becomes a predetermined value, and the frequency of the beat signal is measured, so that the frequency of the laser is measured. This allows measurement of the frequency of laser having large frequency variation and low stability.

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Patent Owner(s)

Patent OwnerAddress
MITUTOYO CORPORATIONKAWASAKI-SHI KANAGAWA 213-8533

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kawasaki, Kazuhiko Ibaraki, JP 26 186

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