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We have developed a new monolithic tunable laser for the deployment in a wavelength-routing switch. The new laser is based on two semiconductor ring resonators placed in parallel, where each resonator plays the role of a wavelength selective filter as well as a loop-mirror to form the necessary laser cavity, hence enhancing the Vernier tuning mechanism. By the control of a single electrode, the device...
We report a monolithically integrated 8×8 wavelength-routing switch with semiconductor-optical-amplifier-based wavelength converters and double-ring-resonator-coupled tunable lasers incorporated with highly reflective cavity mirrors. The dry-etched mirror coated with Au enables flexibility in device layout. It allows highly reflective mirrors in a chip and antireflective coating on both the input...
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 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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