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We fabricated the QD-SOA, which was composed of 20-layer-stacked InAs quantum dots structure with the strain-compensation technique grown by MBE, and evaluated the fundamental gain characteristics and ultra-fast optical pulse response for all-optical logic gate devices at a wavelength range around 1550nm. For the device length of 1650 μm, the maximum gain of 34.7 dB was obtained for TE mode. And we...
The generation of ps-order-short and gigahertz high-repetition optical pulses in the ultra-wideband wavelength tuning range on a 1.2- to 1.3-μm band was successfully demonstrated using a hybrid mode-locked quantum dot optical frequency comb laser.
A wavelength tunable quantum dot external-cavity laser and ultra-broadband holey fiber transmission line were developed using novel nano-structured materials for successful demonstration of error-free 10-Gb/s, 11.4-km long transmission on a 1.3-μm waveband photonic transport system.
An O-band multiple-wavelength light source with 100-GHz channel spacing was successfully demonstrated for the WDM light source using a single quantum dot optical frequency comb laser with an interference injection locking technique.
By using sandwiched sub-nano separator, we successfully fabricated a 210-kHz linewidth ultra-broadband 1.31-μm wavelength tunable external cavity quantum dot laser, which can be useful for coherent transmission systems in O-band.
A wavelength tunable mid-infrared 3-μm waveband light source with an effective intracavity system is successfully demonstrated using a high-performance 805-nm-band laser diode excitation. Advantages include wide-tunability (approx. 90-nm), simple wavelength controllability, and a small footprint.
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