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In this communication, we present strategies to implement novel or enhanced optoelectronic functionalities on silicon via the monolithic integration of functional oxides as active layers for nanophotonic devices. We focus on the use of ferroelectric oxides with naturally strong electro-optical coefficients such as BaTiO3 (BTO) on SOI for the realization of electro-optical modulators around 1.55 µm...
An analytical model for calculating the nonlinear RF distortion products in silicon-based electro-optic Mach-Zehnder modulators is reported and experimentally validated. The model takes into account the nonlinearity inherent to the plasma dispersion effect.
In this paper, we demonstrate moderate slow wave effects in a silicon rib photonic wire Bragg grating at wavelengths around 1.55 mum. Experimental results show group index values up to nG = 72.
Integration of a polarization insensitive inverted taper-based fiber coupling structure with silicon etched V-grooves is demonstrated in CMOS silicon photonics. Coupling loss of 7.5 dB are measured at lambda=1.55 mum. A spectrum broader than 70 nm is observed.
We demonstrate high speed modulation based on a compact silicon ring resonator operating in depletion mode. Our device features an electrical small signal bandwidth of approximately 19 GHz, which is the fastest silicon ring resonator modulator reported to date.
Horizontal slot waveguides are becoming a very promising waveguide configuration for silicon photonics nonlinear applications. In this letter, the design of grating couplers for highly efficient coupling between standard single-mode fibers and horizontal slot waveguides is reported. Parameters have been optimized to achieve maximum coupling efficiency for lambda = 1550 nm and transverse magnetic polarization...
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