Optical waveguides – With optical coupler – Plural
Reexamination Certificate
2006-05-09
2006-05-09
Kang, Juliana (Department: 2874)
Optical waveguides
With optical coupler
Plural
C385S031000, C385S036000, C385S088000
Reexamination Certificate
active
07043113
ABSTRACT:
Disclosed is an optical multi/demultiplexer, which comprises a graded index type light transmission section whose refractive index is continuously reduced in the direction from the center to the periphery thereof, a wavelength-multiplexed-light connecting section disposed at one of the axial ends of the light transmission section, and at least one monochromatic light connecting section disposed at the other axial end of the light transmission section. The wavelength-multiplexed-light connecting section and the monochromatic light connecting section are disposed relative to the light transmission section in such a positional relationship that a monochromatic light included in a wavelength multiplexed light entered from the wavelength-multiplexed-light connecting section into the one end of the light transmission section is emitted from the other end of the light transmission section at a position where the monochromatic light connecting section is disposed. The present invention can provide an optical multi/demultiplexer having a reduced number of components and allowing the number of assembling steps to be reduced while eliminating the need for complicated adjustments.
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Hattori Toshiaki
Hirota Norifumi
Uozu Yoshihiro
Colton, Esq. Kendrew H.
Fitch Even Tabin & Flannery
Kang Juliana
Mitsubishi Rayon Co. Ltd.
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