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We report a novel silicon MZI switch activated by the phase change of a sub-micrometer-size Ge2Sb2Te5 (GST) thin film. The phase change of GST is triggered by electrical pulses, leading to two “self-holding” switching states. Extinction ratio change of 5-dB is measured from the MZI spectrum.
We report a high-linearity wideband dual–parallel silicon Mach–Zehnder modulator (MZM). This modulator consists of two carrier-depletion-based MZMs with a single-drive push–pull traveling wave electrode configuration. An analytic model is established to investigate the linearity property of the modulator. The measurement results show the modulator can effectively suppress third-order harmonics and...
We present thermally tunable microring optical filters using -type microheaters. The use of Vernier effect in the cascaded two microring resonators significantly enlarges the free spectral range (FSR) and the thermal tuning range with reduced power consumption. Heat generated by the -type microheaters interacts directly with the microring waveguides, providing a means to effectively tune...
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