Patent ID: 9632260
Date: 2017-04-25
CPC Classifications: G02B

Claim:
1. A transmitter and receiver integrated optical sub-assembly comprising: a housing that includes a transmitter-side optical receptacle and a receiver-side optical receptacle that are respectively attached to one and another of two through holes formed on one side of the side wall structure in a length direction which is perpendicular to the height direction; a circuit board that has one end portion inserted into the housing through a through hole for a board formed on another side of the side wall structure in the length direction and that has another end portion disposed outside the housing; a plurality of light emitting elements disposed on the bottom wall so as to be arranged in a row in a width direction which is perpendicular to the height direction and perpendicular to the length direction and a plurality of light receiving elements disposed on the bottom wall so as to be arranged in a row in the width direction; a transmitter-side optical system that is disposed in a region of the bottom wall between the transmitter-side optical receptacle and the plurality of light emitting elements and that combines optical signals incident thereupon from the plurality of light emitting elements into a signal so as to output the combined signal to the transmitter-side optical receptacle; a receiver-side optical system that is disposed in a region of the bottom wall between the receiver-side optical receptacle and the plurality of light receiving elements and that splits an optical signal incident thereupon from the receiver-side optical receptacle into signals so as to output the split signals to the plurality of light receiving elements; a driver integrated circuit that is disposed between the plurality of light emitting elements and the other side of the side wall structure in the length direction and that drives the plurality of light emitting elements; and an amplifying integrated circuit that is disposed between the plurality of light receiving elements and the other side of the side wall structure in the length direction and that amplifies electric signals from the plurality of light receiving elements, wherein the circuit board includes a plurality of electrodes arranged in the width direction at the other end portion of the circuit board, and wherein the plurality of electrodes are electrically connected to the driver integrated circuit and the amplifying integrated circuit through a wiring pattern formed on the circuit board.