NOVEL ULTRASHORT OPTICAL PULSE SOURCES BASED ON MODE-LOCKED DIODE LASERS IN MONOLITHIC AND EXTERNAL CAVITY GEOMETRIES
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In this dissertation, mode-locked laser and gain chips have been employed to generate ultrashort optical pulses in both monolithic and external cavity configurations. Self-mode-locking and passive-mode-locking were investigated in quantum-dash and quantum-dot chips at 1550 nm wavelength range. Optical pulses with pulse-width ranging from a few hundred of femtoseconds up to picosecond were obtained. The laser linewidth was characterised by fitting to Lorentzian distribution where pulse-to-pulse timing jitter is consequently measured.
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