Opnext, Inc.

Robert Hartzell

Frank David Yashar

Xiangzhong Wang

Henri Li

Zining Huang

Qingmin Zhang

A pluggable optical/electrical module is disclosed. One or more features operate to decrease electromagnetic interference are implemented, which features include deforming the portions that mate together to form the housing, placing elbow deformities on extending fingers to more properly seal the housing convex shape to housing to seal gaps between multiple sections, and placing an EMI insulating material within an opening that is formed for the latch that locks the module in place in a chassis.

Method and apparatus to provide electromagnetic interference shielding of optical-electrical module

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.

Electronic interface for long reach optical transceiver

A fiber-optic receiver apparatus is described, which monitors and outputs the average received optical power of the incoming optical data beam, as well as the differential amplitude signal.

Growing community of inventors

Emerald Hills, CA, United States of America

Robert Hartzell