Silicon nanowire based exclusive-OR gate using nonlinear optics for 40Gb/s DPSK signals

TL;DR

This paper demonstrates an all-optical XOR gate operating at 40Gb/s for DPSK signals using silicon nanowires and four-wave mixing, achieving error-free performance with manageable system penalties.

Contribution

It introduces a silicon nanowire-based nonlinear optical XOR gate for high-speed DPSK signals, showcasing practical all-optical logic operations in the C-band.

Findings

Error-free XOR operation at 40Gb/s

System penalty of ~3.0dB at 10^-9 BER

Successful implementation of nonlinear optics in silicon nanowires

Abstract

We demonstrate an all-optical XOR logic function for 40Gb/s differential phase-shift keyed (DPSK) data signals in the C-band, based on four-wave mixing (FWM) in a silicon nanowire. Error-free operation with a system penalty of ~ 3.0dB and ~ 4.3dB at 10-9 BER is achieved.