Abstract
We design, fabricate and characterize a CMOS-compatible, Mach-Zehnder-coupled, second-order-microring-resonator filter with large Free Spectral Range and demonstrate non-blocking thermo-optical filter reconfiguration. The device consists of 10-μm radius silicon microring resonators, with an FSR equivalent to that of a structure consisting of 5-μm radii microrings. The structure is reconfigurable over an 8.5 nm range without blocking other channels in the network.
Highlights
State-of-the-art multi-core microprocessor systems have already achieved astonishing performances, but the tradeoff between signal attenuation and bandwidth in metallic wires compromises further progress [1, 2, 3]
The aggregate bandwidth of an Optical Networks-on-Chip (ONoC) is limited by the sum of the bandwidths of all channels comprising the network, which is ultimatelly limited by the Free Spectral Range (FSR) of individual channels
This paper expands our work presented in [16], presenting a detailed description of the synthesis procedure and non-blocking operation
Summary
State-of-the-art multi-core microprocessor systems have already achieved astonishing performances, but the tradeoff between signal attenuation and bandwidth in metallic wires compromises further progress [1, 2, 3]. W. Poon, “Electrically reconfigurable silicon microring resonator-based filter with waveguide coupled feedback,” Opt. Express 15, 9194-9204 (2007).
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