Title

Differential phase-shift-keying demodulation by coherent perfect absorption in silicon photonics.

Contributing USMA Research Unit(s)

Electrical Engineering and Computer Science, Photonics Research Center

Abstract

We demonstrate a novel differential phase-shift-keying (DPSK) demodulator based on coherent perfect absorption (CPA). Our DPSK demodulator chip device, which incorporates a silicon ring resonator, two bus waveguide inputs, and monolithically integrated detectors, operates passively at a bit rate of 10 Gbps at telecommunication wavelengths, and fits within a mm-scale footprint. Critical coupling is used to achieve efficient CPA by tuning the gap between the ring and bus waveguides. The device has a vertical eye opening of 12.47 mV and a quality factor exceeding 3×10

Publication Date

8-15-2018

Publication Title

Optics letters

Document Type

Article

First Page

4061

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