Patent ID: 7646982
Filing Date: 2010-01-12
Classification: G02B,H04B

Abstract:
1. A chromatic dispersion compensator comprising: an optical component which includes an element having two parallel reflection planes opposing each other, the optical component having a demultiplexing function, in which a light focused in a one-dimensional direction is incident to a space between the reflection planes, a part of the incident light is transmitted through and emitted from one of the reflection planes while multiply reflected between the reflection planes, and light fluxes having different traveling directions are formed according to wavelengths by interference of the emitted lights; a reflector which reflects the light flux of each wavelength, the light fluxes being emitted from one of the reflection planes of the optical component toward the different directions, the reflector returning the light fluxes to said optical component; and a reflection position control unit which controls a position of said reflector corresponding to a chromatic dispersion compensation amount, wherein, said element of said optical component is made of a material having a refractive index higher than that of optical glass.