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We report on subpicosecond pulse generation using passively mode-locked laser diodes based on AlGaInAs 1.55-mum strained multiquantum-wells. Without any external pulse compression, the nearly transform-limited Gaussian pulses are generated at the quasi-40-GHz repetition rate with the 700-fs pulse duration.
Passive mode locking at 40 GHz is reported on AlGaInAs strained multi-quantum-well lasers. The devices show very stable mode locking operation over a very large range of biasing conditions and up to temperatures of 100degC.
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