Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
Electronic interface for long reach optical transceiver
A low form-factor transceiver system appropriate for long-reach optical communications is presented. In accordance with the present invention, an electronic interface to a receiver optical sub assembly (ROSA) and a transmitter optical sub assembly (TOSA) is arranged on a multi-layer board to electrically shield the transmitter and receiver portions from a high-voltage power supply, which is utilized to provide bias voltages to optical detectors in the ROSA. In some embodiments of the invention, the high-voltage power supply is arranged on a top layer while the transmitter and receiver are arranged on a bottom layer in a split-ground arrangement. Layers between the top layer and the bottom layer include at least one ground plane and provide vias for electrical connections.
Opnext, Inc.
H H H H H G H H H
H04B H05K H05K H05K H05K G02B H05K H05K H05K
inventional additional inventional additional additional inventional additional additional additional
Qingmin Robert
Zhang Hartzell