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Recent challenges facing research and development on high-speed devices and their integration for 100 GbE are explained. The low-power-consumption technology and optical-integration technology are considered to be the key solutions to face these challenges.
We have developed a high-speed electroabsorption modulator integrated distributed feedback (EA/DFB) lasers. To realize the high-speed, small-footprint, low-power-consumption and cost-effective semiconductor light source, we have investigated the several key technologies. Newly developed 1.3 mum range 25 Gbps and 43 Gbps EA/DFB laser showed a good transmission performance over 10 km single mode fiber...
We developed a 25-Gbps receiver employing a small, cost effective coaxial package and flexible printed circuits. Our fabrication method for reducing electrical resonance and loss was effectively applied. The fabricated receiver had a 24-GHz 3-dB bandwidth and was successfully operated at 25 Gbps.
A novel travelling-wave semiconductor optical modulator electrically matched for InP-HBT drivers was demonstrated. It enables a 40-Gbit/s, 2-km SMF transmission with a 0.3-dB penalty at a 1.3-mum wavelength. Monolithically integrated DFB-LD produces a high-power output
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