Generation of Ultrashort (∼ 65 fs) Pulses from 1.55 µ m Gain-Switched Distributed Feedback (DFB) Laser with Soliton Compression by Dispersion Arrangements

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Abstract
We report the successful generation of optical pulses (∼ 65 fs) from a 1.55 µm gain-switched distributed feedback semiconductor laser with fiber optic compression techniques by a novel dispersion arrangement. These pulses are the shortest ever generated starting from a semiconductor laser diode and are promising for practical applications in ultrafast photonic systems.