UNIC silicon modulator

Kotura has detailed a compact, low-power silicon-based optical modulator; an important building block to enable dense on-chip optical interconnects. The modulator operates at up to 11Gbit/s, consumes 0.5mW and has an area of 1000µm².

This is the silicon photonic start-up’s first announced modulator. The design has been developed in conjunction with Sun Microsystems as part of the DAPRA Ultraperformance Nanophotonic Intrachip Communications (UNIC) programme.

An image of the modulator and a cross-section diagram of the ring waveguide. Source: Kotura

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