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Uncooled 10-Gbit/s, 80- km SMF transmission was demonstrated for the first time using a 1.55-μm InGaAlAs EA/DFB laser. A power penalty below 2-dB was achieved over a wide temperature range from 15°C to 95°C.
Direct modulation at 40 Gb/s of a 1.3-mum InGaAlAs distributed feedback ridge waveguide laser is experimentally demonstrated. By combination of the high differential gain of an InGaAlAs multiquantum well active layer, a short cavity length of 100 mum, and a low-resistance notch-free grating, it achieves high bandwidth of 29 GHz and high-extinction ratio of 5 dB at 40-Gb/s modulation. Moreover, the...
Direct modulation of 1.3-mum InGaAlAs DFB RWG lasers at 40 Gb/s is experimentally demonstrated. This laser achieves a record extinction ratio of 5 dB under 40-Gb/s modulation. Moreover, it can provide 40-Gb/s modulated transmission over 2 km
New uncooled 1,550-nm InGaAlAs electroabsorption-modulators and their laser-integration technologies were developed for 10/40-Gbit/s small-form-factor modules. For the first time, 10-Gbit/s 40-km SMF transmission and 40-Gbit/s operation were achieved up to 85degC
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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