Amplification of nonlinear polariton pulses in waveguides

  • Tapia Rodriguez L
  • Walker P
  • Sigurdsson H
  • et al.
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Abstract

© 2019 OSA - The Optical Society. All rights reserved. Using a sub-millimeter exciton-polariton waveguide suitable for integrated photonics, we experimentally demonstrate nonlinear modulation of pico-Joule pulses at the same time as amplification sufficient to compensate the system losses. By comparison with a numerical model we explain the observed interplay of gain and nonlinearity as amplification of the interacting polariton field by stimulated scattering from an incoherent continuous-wave reservoir that is depleted by the pulses. This combination of gain and giant ultrafast nonlinearity operating on picosecond pulses has the potential to open up new directions in low-power all-optical information processing and nonlinear photonic simulation of conservative and driven-dissipative systems.

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Tapia Rodriguez, L. E., Walker, P. M., Sigurdsson, H., Royall, B., Farrer, I., Ritchie, D. A., … Krizhanovskii, D. N. (2019). Amplification of nonlinear polariton pulses in waveguides. Optics Express, 27(8), 10692. https://doi.org/10.1364/oe.27.010692

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