Patent ID: 7483460
Filing Date: 2009-01-27
Classification: H01L,H01S

Abstract:
1. A transmitter optical module for generating an optical signal corresponding to a received electrical signal, comprising: a first driver for receiving the electrical signal and for outputting a first driving signal; a second driver for receiving the electrical signal and for outputting a second driving signal; a current source for generating a bias current; and a transmitter optical subassembly for receiving the first and second driving signals and for generating the optical signal, the transmitter optical subassembly including: a semiconductor laser diode for receiving the first driving signal in an anode electrode thereof; an auxiliary circuit, by receiving the second driving signal, for generating a transient current in the anode electrode of the semiconductor laser diode in synchronous with a leading edge of the second driving signal; and a CAN-type package for installing the semiconductor laser diode and the auxiliary circuit therein and the first and second drivers and the current source externally, the package providing a first lead pin for supplying the first driving signal superposed with the bias current to the anode electrode of the semiconductor laser diode and a second lead pin for supplying the second driving signal to the auxiliary circuit, wherein the semiconductor laser diode is connected between the first lead pin and the ground.