Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2008-07-15
2008-07-15
Healy, Brian M (Department: 2883)
Optical waveguides
With optical coupler
Particular coupling structure
C385S014000, C385S031000, C385S033000, C385S045000, C385S049000, C385S088000, C385S089000, C385S092000, C385S093000, C398S135000, C398S138000, C398S139000
Reexamination Certificate
active
11765329
ABSTRACT:
Embodiments provide single fiber bidirectional HDCP modules. A signal fiber module includes at least one laser and at least one detector and a waveguide combiner/splitter. An optical fiber is used as a cylindrical lens in order to partially collimate in the vertical axis the optical signals entering and leaving branches of a waveguide. The branches of the waveguide have lens-shape interfaces in order to at least partially collimate in the horizontal axis the beams entering and leaving the waveguide. Each branch of the waveguide tapers toward a join-section of the waveguide. At the join section, the cross-section of a laser branch is smaller than the cross-section of a detector branch. If more than one detector is present in a module, the cross-sections of the detector branches differ from each other. If more than one laser is present in a module, the cross-sections of the laser branches differ from each other.
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Blair Randall
Hu Todd
Tong Xiaolin
Tzeng Shing-Wu P.
Fenwick & West LLP
Healy Brian M
Owlink Technology, Inc.
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