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We demonstrate an all-optical wavelength-routing switch monolithically integrated with four wavelength converters and an 8times8 arrayed-waveguide-grating (AWG) filter. In the switch, double-ring-resonator-coupled tunable laser diodes allow rapid and stable switching between output ports (~5 ns) and optical gates based on a parallel amplifier structure prevent the input optical signal from being routed...
A monolithic widely tunable semiconductor laser based on a double-ring resonator is developed for use in a wavelength-routing switch. By using the double-ring resonator as a wavelength-selective filter, operation over a wide wavelength tuning range is achieved with a low tuning current. This low-tuning-current operation makes the laser very promising as a high-speed tunable light source for a wavelength-routing-based...
A novel integrated filtered feedback tunable laser consisting of a Fabry-Perot laser and integrated filtered feedback section is proposed and demonstrated. The device exhibited a 24-nm tuning range and 1-GHz thermal frequency drift.
A filter-free widely tunable wavelength converter was developed by monolithically integrating a tunable laser based on a double-ring resonator and an optical gate based on a parallel amplifier structure. Wavelength conversion for a 10-Gbit/s NRZ signal is also demonstrated, tunable over a 40-nm range.
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