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We report on ultra-short pulse single-section mode-locked lasers emitting at 1.55μm, based on self-assembled InAs/InGaAsP/InP quantum dot active regions grown by metal-organic vapor phase epitaxy (MOVPE). For a 1.5-mm-long Fabry-Perot laser, mode-locking at a repetition rate of 29.8GHz with pulse duration of 855fs is obtained without any external pulse compression techniques. The mode-beating exhibits...
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