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Optical transmission measurements are reported in the 1.3-mum region in an InAs quantum-dot (QD) waveguide modulator using a supercontinuum generator. A quantum-confined Stark shift of 15 nm was demonstrated in a five-layer QD stack with a field of 270 KV/cm. The electrically induced change in absorption has been measured and the change in refractive index (up to 0.001) has been estimated via the...
Femtosecond operation of a solid-state laser passively mode locked by a quantum-dot saturable absorber has been demonstrated. Controllability of the pulse duration is demonstrated with pulses ranging from 58 ps to 158 fs around 1280 nm.
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