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Updated: Jun 5, 2025

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Topological optical parametric oscillation.

Arkadev Roy¹, Midya Parto¹, Rajveer Nehra¹

¹Department of Electrical Engineering, California Institute of Technology, Pasadena 91125, CA, USA.

Nanophotonics (Berlin, Germany)

|December 5, 2024

Summary

This summary is machine-generated.

This study demonstrates parametric oscillation in topological boundary modes of resonator arrays, even in higher-order topological insulators. Quantum squeezing dynamics in these topological edge modes show robustness against disorder.

Keywords:

nonlinear optics quantum optics topological photonics

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Area of Science:

Condensed Matter Physics
Quantum Optics
Nonlinear Dynamics

Background:

Topological insulators feature protected boundary states robust against disorder.
Harnessing topological effects in nonequilibrium systems is crucial for applications like topological lasers.
Exciting topological boundary states without bulk instability in bosonic systems is challenging.

Purpose of the Study:

To investigate parametric oscillation in topological boundary modes of nonlinear resonator arrays.
To explore quantum squeezing dynamics in topological edge modes under nonequilibrium conditions.
To assess the robustness of topological edge modes against disorder.

Main Methods:

Utilizing parametrically driven nonlinear resonator arrays.
Analyzing complex eigenvalues in edge modes under uniform pumping.
Investigating parametric oscillation in 1D, 2D, and higher-order topological insulator systems.
Demonstrating squeezing dynamics below the oscillation threshold.

Main Results:

Parametric oscillation was observed in topological boundary modes (1D/2D) and corner modes (higher-order topological insulators).
Complex eigenvalues were localized in edge modes despite uniform pumping.
Quantum squeezing dynamics were demonstrated in topological edge modes.
Topological edge modes exhibited robustness against certain disorders.

Conclusions:

Weakly nonlinear topological systems driven out-of-equilibrium display unique dynamics.
Topological boundary modes can be selectively excited and exhibit robust quantum properties.
This work offers insights into the quantum regime of driven topological systems.