Optical module including semiconductor optical modulator

摘要

An optical module that processes an input optical signal and outputs a processed optical signal is disclosed. The optical module provides a housing and an optical processing device in the housing. The housing provides an optical input port and an optical output port in a first wall thereof in side-by-side arrangement. A third wall of the housing only provides RF terminals. Second and fourth walls of the housing provide DC terminals. Electrical connection between the DC terminals with DC pads on the device is realized through a wiring substrate whose top avoids an optical path from the optical input port to the input port of the device.

主权项

1. An optical module that receives an input optical signal and outputs a processed optical signal, comprising:
an optical processing device configured to receive the input optical signal and output the processed optical signal, the optical processing device having a rectangular plane shape with first to fourth edges, the optical processing device further having an input port in the second edge, an output port in the first edge, a monitor port in at least one of the second and fourth edges, RF signal pads in the third edge opposite to the first edge, and DC signal pads in the second and fourth edges; a housing having a rectangular plane shape including first to fourth walls corresponding to the first to fourth edges of the optical processing device, the housing further having an optical input port and an optical output port in the first wall, the optical input port receiving the input optical signal thereat, the optical output port outputting the processed optical signal therefrom, the optical output port being aligned with the output port of the optical processing device; an input coupling system provided between the second wall of the housing and the second edge of the optical processing device, the input coupling system guiding the input optical signal provided in the optical input port of the housing to the input port of the optical processing device; and a wiring substrate that electrically connects terminals provided in the second wall of the housing to the DC signal pads provided in the second edge of the optical processing device, wherein the optical module installs the optical processing device in the housing as being offset from a longitudinal axis of the housing and provides a space between the second wall and the second edge wider than a space between the fourth wall and the fourth edge, and wherein the wiring substrate has a top level thereof avoiding an optical path of the input optical signal from the optical input port of the housing to the input port of the optical processing device.