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We have found that the extinction ratio (ER) of an electroabsorption modulator integrated with a distributed feedback laser strongly depends on the incident power to the modulator. Our theoretical consideration based on full device simulation reveals that the temperature change in the modulator dominates the phenomenon. To obtain the intrinsic extinction characteristics of the modulator, we use microscopic...
High-performance 1.3-μm InGaAlAs electroabsorption modulators integrated with DFB lasers are developed for long-reach 100-Gbit/s Ethernet system. Four-channel, 40-km SMF transmission at 25-Gbit/s operation is demonstrated for the first time.
Incident-power-dependent extinction ratio of electroabsorption modulators is shown and theoretically investigated by using microscopic theory combined with heat-flux calculation. The phenomenon stems from voltage-dependent temperature rise and the calculated results agree well with the experiment.
High-performance 1.3-µm InGaAlAs electroabsorption modulator integrated with DFB laser module for metro-area 100-Gbi/s Ethernet system (100GBASE-ER4) has been realized. Long-reach (40 km) error-free transmission under 25-Gbit/s operation on SMF is achieved for the first time.
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