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Pulses from a passively mode-locked two-section multiquantum well laser coupled to an external cavity are compressed to subpicosecond pulse widths using an external grating telescope compressor. A minimum deconvolved pulse width of 0.32 ps is measured, close to the transform limit, with peak powers of 1.9 W.<<ETX>>
Pulse trains with a 42 GHz repetition rate were generated by monolithic InGaAs/AlGaAs double quantum well lasers at a wavelength of 9850 AA. The cavity was electrically divided into three regions, one providing gain and the other two providing saturable absorption. The optical modulation has a depth greater than 98% and full-width at half-maximum under 6 ps, and bias conditions for sustained mode-locking...
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