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. 2011 Mar 1;36(5):710-2.
doi: 10.1364/OL.36.000710.

Photonic chip-based all-optical XOR gate for 40 and 160 Gbit/s DPSK signals

Trung D Vo  1 , Ravi Pant, Mark D Pelusi, Jochen Schröder, Duk-Yong Choi, Sukhanta K Debbarma, Stephen J Madden, Barry Luther-Davies, Benjamin J Eggleton
Affiliations

Photonic chip-based all-optical XOR gate for 40 and 160 Gbit/s DPSK signals

Trung D Vo et al. Opt Lett. .

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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