Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2006-06-06
2006-06-06
Doan, Jennifer (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling structure
C385S015000, C385S039000
Reexamination Certificate
active
07058266
ABSTRACT:
An optical waveguide module provides light intensity detection is comprised of a light emitting portion, a substrate and a clad formed over the substrate wherein a first core and a second core are covered with the clad, the first and second cores being formed of a material having a higher refractive index than that of the clad. A first reflection surface is formed at an incident side end portion of the first core for reflecting light emitted from a light emitting portion in the guiding direction of the first core and a second reflection surface is formed as an incident side end portion of the second core for reflecting light emitted from the light emitting portion in the guiding direction of the second core. A light receiving portion receives and detects an amount of light in order to control the intensity of the emitted light.
REFERENCES:
patent: 5343542 (1994-08-01), Kash et al.
patent: 5999670 (1999-12-01), Yoshimura et al.
patent: 6741781 (2004-05-01), Furuyama
patent: 11-352362 (1999-12-01), None
Arakida Takahiro
Nakata Hidehiko
Suzuki Kenji
Depke Robert J.
Doan Jennifer
Sony Corporation
Trexler, Bushnell Giangiorgi, Blackstone & Marr, Ltd.
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