Ultrahigh-bandwidth, on-chip all-optical pulse erasure using the χ(3) process in a nonlinear chalcogenide waveguide

Ravi Pant; Trung D Vo; Chunle Xiong; Mark D Pelusi; Steve J Madden; Barry Luther-Davies; Benjamin J Eggleton

doi:10.1364/OL.36.000298

Ultrahigh-bandwidth, on-chip all-optical pulse erasure using the χ(3) process in a nonlinear chalcogenide waveguide

Opt Lett. 2011 Jan 15;36(2):298-300. doi: 10.1364/OL.36.000298.

Authors

Ravi Pant¹, Trung D Vo, Chunle Xiong, Mark D Pelusi, Steve J Madden, Barry Luther-Davies, Benjamin J Eggleton

Affiliation

¹ Institute of Photonics and Optical Science (IPOS), School of Physics, University of Sydney, Sydney, New South Wales 2006, Australia. rpant@physics.usyd.edu.au

PMID: 21263532
DOI: 10.1364/OL.36.000298

Abstract

We demonstrate on-chip all-optical pulse erasure based on four-wave mixing and cross-phase modulation in a dispersion engineered chalcogenide (As(2)S(3)) rib waveguide. We achieve an erasure efficiency of ~15 dB for picosecond pulses in good agreement with numerical simulations using the nonlinear Schrödinger equation. The combined effect of the high instantaneous optical nonlinearity (γ = 9900 (W km)(-1)) and small group-velocity dispersion (D = 29 ps/nm km), which reduces pulse walk-off, will enable all-optical pulse erasure for ultrafast signal processing.