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A reflective optical switch in silicon-on-insulator (SOI) is proposed for routing traffic within a telecommunication system. The design utilizes a symmetric Y-branch (or 1 times 2) structure with curved rib waveguides and two modulation regions. Full containment of carriers is provided in each modulation region by using a thin oxide barrier. The analysis showed a crosstalk of -20 dB is achievable...
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.
There is a trend towards miniaturization of silicon photonic circuits due to superior performance and small cost. Design rules that must be imposed on the geometry of optical waveguides to make them behave as polarization-independent and single-mode devices are well known for waveguides with relatively large cross sections and for some small cross-sectional rib waveguides with vertical sidewalls and...
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