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Uncooled 1.3 mum InGaAsP/InP BH DFB lasers with complex-coupled design have shown stable single mode operation and high-speed performances, exceeding 10 Gb/s from -40degC to 85degC, making devices suitable for future 10 Gb/s GPON.
Quantum-dot (QD) lasers exhibit many useful properties such as low threshold current, temperature and feedback insensitivity, chirpless behavior, and low linewidth enhancement factor (alphaH-factor). Although many breakthroughs have been demonstrated, the maximum modulation bandwidth remains limited in QD devices, and a strong damping of the modulation response is usually observed pointing out the...
We demonstrate variable fast light at room temperature using multiple cascaded quantum-well semiconductor optical amplifiers. Controllable delay is achieved both electrically and optically, or by varying the number of amplifiers or amplifier-to-amplifier attenuation.
An optical delay variable between 0 to 161 ps with GHz bandwidth is demonstrated in an InGaAsP quantum-well semiconductor optical amplifier and modeled by population oscillation and nearly degenerate four-wave-mixing effects for the first time.
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