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A silicon photonics integrated reconfigurable nested Mach-Zehnder interferometer including tunable splitters and four independent phase modulators has been designed and fabricated. Thanks to the custom architecture, 16-QAM modulation is achieved with simple binary driving signals and successfully detected up to 20Gbaud with BER below the FEC level.
A photonic integrated circuit capable of recombining any incoming state of polarization into a single TE Silicon waveguide was demonstrated, allowing optical communication systems to be transparent to polarization issues.
We report on the fabrication and characterization of a novel near infrared phototransistor provided with a Germanium optical gate and fabricated by means of a commercially available silicon photonics foundry.
We report on the fabrication and characterization of a near infrared junction field effect phototransistor provided with a Germanium gate and fabricated in a silicon photonics foundry. The maximum device responsivity exceeds 36A/W with a dark current of 33µA at 2V.
In this paper we report an integrated phase modulator based on two layers of graphene on top of a SOI waveguide. Biasing the graphene to the transparency condition we show that is possible to achieve phase modulation with promising performance in terms of efficiency and insertion losses with respect to the conventional pn junction silicon phase modulators. The proposed device exhibits an efficiency...
We report on the simulation of Optically Controlled Field Effect Transistors (OCFET) based on a MOSFET with a Germanium gate. We study the static and dynamic characteristics of the device under near infrared light at 1.55 μm and investigate its operation as a digital inverter.
The evaluation of the Residual Added Signal Crosstalk in a micro-ring based silicon photonic integrated ROADM is presented. The origin of the cross talk is mainly due to reflections at the grating coupler interfaces.
We report on pn Ge solar cells grown on Ge substrates and transferred onto glass by wafer bonding. They perform similarly to cells on the native Ge substrate, whereas their energy conversion efficiency compares well with state-of-the-art stand alone Ge photovoltaic cells. We propose Germanium layer transfer and wafer bonding for the realization of effective multi-junction solar cells and versatile...
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