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Updated: Jun 4, 2026

Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
Photonic chip-based all-optical XOR gate for 40 and 160 Gbit/s DPSK signals
Trung D Vo1, Ravi Pant, Mark D Pelusi
1Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS), School of Physics, The University of Sydney, Sydney, NSW, Australia. trungvo@physics.usyd.edu.au
Abstract:
We demonstrate a photonic chip-based all-optical exclusive-OR (XOR) gate for phase-encoded optical signals via four-wave mixing in a highly nonlinear, dispersion-engineered chalcogenide (As2S3) planar waveguide. We achieve error-free, XOR operation for 40 Gbit/s differential phase shift keying (DPSK) optical signals with no power penalty. The effectiveness and broad bandwidth operation of our approach is highlighted by implementing an XOR gate for 160 Gbit/s DPSK signals.
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