H - Electricity – 01 – S
Patent
H - Electricity
01
S
315/24
H01S 3/13 (2006.01) G01J 3/26 (2006.01) H01S 3/131 (2006.01)
Patent
CA 1282820
ABSTRACT OF THE DISCLOSURE A laser wavelength is stabilized by deriving a portion of laser beam emitted from a wavelength variable laser oscillator, spectroscopically processing the laser beam portion by means of a wavelength monitor mechanism, measuring a spatial intensity distribution of the spectro- scopically processed beam portion, spectroscipically processing light having a specific wavelength and measuring a spatial intensity distribution thereof, analysing the measured spatial intensity distribution of the spectro- scopically processed beam portion on the basis of the measured spatial intensity distribution of the spectro- scopically processed light having the specific wavelength, and controlling wavelength of the laser oscillator according to a result of the analysis.
578170
Haruta Kenyu
Minowa Yoshibumi
Nagai Haruhiko
Nakatani Hajime
Wakata Hitoshi
Mitsubishi Denki Kabushiki Kaisha
Riches Mckenzie & Herbert Llp
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