| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical waveguide type wavelength dispersion compensation device which is made compact, has an excellent dispersion compensation characteristic and is easily manufactured at a low cost. SOLUTION: The optical waveguide type wavelength dispersion compensation device has an optical waveguide as a reflection type wavelength dispersion compensation means in which the equivalent refractive index of a core imbedded in a clad inhomogeneously varies over a light propagation direction, wherein the optical waveguide has a plurality of channels of dispersion-compensation wavelength regions and a dispersion-compensation characteristic in which the dispersion is compensated in the wavelength region of the respective channels. It is preferable that the width of the core of the optical waveguide is inhomogeneously distributed in the light propagation direction. COPYRIGHT: (C)2009,JPO&INPIT |
