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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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Topological phenomena in classical optical networks.

T Shi1, H J Kimble2, J I Cirac3

  • 1Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany; tshi@mpq.mpg.de hjkimble@caltech.edu.

Proceedings of the National Academy of Sciences of the United States of America
|October 27, 2017
PubMed
Summary
This summary is machine-generated.

We demonstrate a novel topological insulator using optical-passive elements, achieving broad bandwidths and stable topological features even with Kerr nonlinearities. This work broadens the scope of topological photonics applications.

Keywords:
networknonlinearopticaltopology

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Area of Science:

  • Photonics
  • Topological Materials
  • Nonlinear Optics

Background:

  • Topological insulators offer unique edge states with potential applications in robust information transfer.
  • Realizing topological insulators with optical-passive elements remains a challenge.

Purpose of the Study:

  • To propose and analyze a scheme for realizing a topological insulator using optical-passive elements.
  • To investigate the impact of Kerr nonlinearities on topological properties.
  • To explore the broadening of bandwidths and bandgaps in topological optical systems.

Main Methods:

  • Theoretical proposal for an optical-passive topological insulator.
  • Analysis of linear and nonlinear regimes, including Kerr nonlinearities.
  • Investigation of system Hamiltonians and edge mode properties.
  • Assessment of robustness and stability of topological features.

Main Results:

  • Broadened bandwidths and bandgaps in the linear regime, leading to wide-frequency-range edge modes.
  • Demonstration of topological features robust to Kerr nonlinearities.
  • Identification of long-range effective Hamiltonians as a key factor.
  • Prediction of chiral squeezed fluctuations at edges in specific parameter regimes.

Conclusions:

  • The proposed scheme enables the realization of topological insulators with optical-passive elements.
  • Kerr nonlinearities can be incorporated while maintaining topological robustness.
  • The findings open avenues for novel photonic devices with enhanced functionalities.