Patent ID: 8611755

Claim:
An optical transmitter, comprising: a transmitter optical subassembly (TOSA) having a receptacle end and a package end, the package end comprising a transistor outline (TO) package having a TO header, the package end having a plurality of TOSA electrical contacts and containing at least one opto-electronic device having an optical axis normal to the TO header; a flexible circuit having a first end attached to the TO header of the TOSA and a second end attachable to a circuit board; and at least one active electronic device mounted on a portion of the flexible circuit at the first end, the portion being adjacent to the TO header, the portion abutting and lying against the TO header, the portion being parallel to the TO header, the optical axis being normal to the portion, wherein conductive traces of the flexible circuit electrically interconnect the circuit board, the at least one electronic device, and the plurality of TOSA electrical contacts, and the at least one active electronic device processes signals communicated between the circuit board and the at least one opto-electronic device.