07400801 is referenced by 1 patents and cites 45 patents.

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.

Title
Bidirectional HDCP module using single optical fiber and waveguide combiner/splitter
Application Number
11/765329
Publication Number
7400801 (B1)
Application Date
June 19, 2007
Publication Date
July 15, 2008
Inventor
Todd Hu
Irvine
CA, US
Randall Blair
Oceanside
CA, US
Shing Wu P Tzeng
Fountain Valley
CA, US
Xiaolin Tong
Irvine
CA, US
Agent
Fenwick & West
Assignee
Owlink Technology
CA, US
IPC
H04B 10/00
G02B 6/26
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