YASKAWA AQ6370B - Page 57

3-24
IM 735302-01E
3.8 Important Points During Measurement
Relationship between the Wavelength Displayed on Screen and the Actual Wavelength
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Actual wavelength (nm)
Wavelength displayed on screen (nm)
Second-order diffracted light
1266nm
ex. 633nm
Example of measurement in which second-order diffracted light appears at 1266 nm
The ghost spectrum of the second-order
diffracted light