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Polarization-independent wavelength path switching is demonstrated with one-chip silicon photonic circuit including 64 thermo-optical switch elements within 12mm × 3mm. Owing to uniformity, any path can be constructed by simply turning on one switch element.
We present a low-crosstalk operation of 2 × 2 thermo-optic switch with Si-wire waveguides, based on cascade connection of Mach-Zehnder interferometers. The lowest crosstalk levels of -50 dB and -30 dB are obtained for `bar' and `cross' switching states, respectively.
We present a high speed silicon micro-ring modulator with a tunable resonant wavelength enabled by a local heater. With a ~46 mW thermal tuning power, the working wavelength can expend to more than 100 nm.
This paper reports a compact silicon-based thermo-optic switch using photonic wire waveguides. The switch is constructed in Mach-Zehnder interferometer (MZI) configuration on a silicon substrate. The switching operation is achieved through thermo-optic effect. In the experiments, an extinction ratio about 25 dB at the wavelength of 1590 nm is obtained. The switching power is around 180 mW.
We demonstrate high current operation of an evanescently coupled Ge waveguide photodetector grown on top of a Si rib waveguide. A 7.4 mum times 500 mum photodetector was found to dissipate 1.003 W of power (125.49 mA at -8V).
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