With all these improvements, our 3mum demonstrated a very low threshold current of 0.14 mA and a high differential quantum efficiency of 54%. This indicates that the static performance was not noticeably degraded by these modifications for high-speed operation. On the other hand, g 20 GHz bandwidth, the highest for 980 nm VCSELs, was achieved at just 2 mA. A data rate of 35 Gb/s was demonstrated with only 10 mW power dissipation, corresponding to the highest data-rate/power-dissipation ratio of 3.5 Gbps/mW for any laser sources.ter to provide the feedback for the temperature controller. The module is wrapped ... Like all the other sources, Eurotherm is used to control theCBr4 temperature. With a properly tuned PID ... there is no growth.) A manual UHV valve had to 139.
|Title||:||Engineering Vertical-cavity Surface-emitting Lasers for High-speed Operation|
|Publisher||:||ProQuest - 2008|