Patent ID: 7231111
Filing Date: 2007-06-12
Classification: G02B

Abstract:
1. A tunable dispersion compensator, comprising: a collimating unit that collimates an incident light to output a parallel light; a parallel light shifting unit that spatially separates the parallel light from the collimating unit into a plurality of channel lights that are parallel to one another; and a wavelength dispersion providing unit that includes a mirror for compensation of wavelength dispersion of the channel lights, wherein: the parallel light shifting unit outputs the channel lights in such a way that the channel lights are incident on and reflected at different points on a surface of the mirror, and the wavelength dispersion providing unit further includes a spectroscoiic unit that spatially separates each of the channel lights, which are input from the parallel light shifting unit via a first lens, and outputs each of the channel lights to the mirror via a second lens.