Apparatus for variable wavelength dispersion and wavelength dispersion slope

摘要: Rays of light having respective wavelengths angular-dispersed and output from a VIPA plate are collected by lens, diffracted grating pair which is an optical path shift generation unit amount variation unit, have in rays different wavelengths. When the reflected dispersion leveling three-dimensional mirror input into again, they received portions compensation mirror, thereby realizing amounts wavelength for wavelengths, independently adjusting entire WDM slope.