High-performance and low-cost 10Gbps coaxial DFB laser module packaging by conventional TO-Can materials and processes

The high-performance and low-cost 10Gbps coaxial DFB laser module packaging by conventional TO-Can materials and processes are developed and fabricated. The laser module has a built-in matching resistor to reduce the resonant phenomenon. In order to optimize the module's performance, detailed equivalent circuit model is established to investigate both the DFB laser diode and the coaxial package comprehensively. After a proper design and fabrication, this uncooled 10Gbps laser module could operate at a high temperature up to 105degC and maintain an eye mask margin above 28% in the full operational temperature range to meet the stringent requirements of 10Gbps Ethernet for long reach applications. Previously, the high-performance 10Gbps coaxial laser modules have only been available by using complicated design, customized components, and specialized fabrication process