Patent ID: 7317742
Filing Date: 2008-01-08
Classification: G02B,H01S

Abstract:
1. A transmitting optical sub-assembly, comprising: a semiconductor light-emitting device for emitting light by providing a modulation signal; a thermoelectric cooler for controlling a temperature of said semiconductor light-emitting device; and an insulating carrier including a first mounting surface and an inner ground layer, said first mounting surface providing a first transmission line for transmitting said modulation signal, a first terminator connected to said first transmission line and a surface ground layer connected to said inner ground layer, wherein said carrier is mounted on said thermoelectric cooler and said semiconductor light-emitting device is mounted on said first mounting surface of said carrier, and wherein said first mounting surface of said insulating carrier further includes a second transmission line and a second terminator connected to said second transmission line, and wherein said second transmission line transmits another modulation signal having a phase opposite to a phase of said modulation signal.