Optical frequency measurement equipment and optical frequency measuring method

摘要

1st optical frequency is optical frequency of suffering measurement input light and optical frequency of the closest pulse light and difference frequency of optical frequency of suffering measurement input light inside the pulse illuminant and the plural optical frequency components which generate the pulse light which includes the plural optical frequency components which repeat the optical frequency measurement equipment of this invention, roughly the reference frequency which is frequency of the optical suffering measurement input light optical frequency (Fw) calculates roughly on the basis of the standard wave length which is wave length of standard light, frequency measurement equipment and standard light (Fs) of on the basis, frequency (fs1) with differDifference frequency (fc) the 1st beat signal occurrence section which generates the 1st beat signal which it has and, 1st difference frequency of the 1st beat signal (fc) the frequency measurement equipment which is measured and, optical frequency (Fw), reference frequency (Fs), it repeats roughly and spirit optical frequency (Fx) it has with the arithmetic logical unit which is calculated frequency (fs1), and 1st difference frequency (fc) of on the basis.