$4 \times 4$ InP Switch Matrix With Electro-Optically Actuated Higher Order Micro-Ring Resonators

A 4 × 4 crosspoint switch circuit based on resonant elements is demonstrated on a generic InP integrated photonics platform. The switch matrix is constructed from a crosspoint grid of the third-order ring resonator switch elements. Electro-optic tuning is used for actuation, with a tuning range of 0.46 times the free spectral range. Integrated optical amplifiers compensate on-chip losses. Physical layer characterization is performed to demonstrate 10- and 20-Gb/s data routing with a maximum power penalty of 2.6 dB. Fast switching transients of under 10 ns are shown.

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