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Cross-polarized photon-pair generation and bi-chromatically pumped optical parametric oscillation on a chip

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posted on 2023-06-08, 22:39 authored by Christian Reimer, Michael Kues, Lucia Caspani, Benjamin Wetzel, Piotr Roztocki, Matteo Clerici, Yoann Jestin, Marcello Ferrera, Marco Peccianti, Alessia Pasquazi, Brent E Little, Sai T Chu, David J Moss, Roberto Morandotti
Nonlinear optical processes are one of the most important tools in modern optics with a broad spectrum of applications in, for example, frequency conversion, spectroscopy, signal processing and quantum optics. For practical and ultimately widespread implementation, on-chip devices compatible with electronic integrated circuit technology offer great advantages in terms of low cost, small footprint, high performance and low energy consumption. While many on-chip key components have been realized, to date polarization has not been fully exploited as a degree of freedom for integrated nonlinear devices. In particular, frequency conversion based on orthogonally polarized beams has not yet been demonstrated on chip. Here we show frequency mixing between orthogonal polarization modes in a compact integrated microring resonator and demonstrate a bi-chromatically pumped optical parametric oscillator. Operating the device above and below threshold, we directly generate orthogonally polarized beams, as well as photon pairs, respectively, that can find applications, for example, in optical communication and quantum optics.

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Publication status

  • Published

File Version

  • Published version

Journal

Nature Communications

ISSN

2041-1723

Publisher

Nature Publishing Group

Issue

1

Volume

6

Article number

a8236

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2015-10-02

First Open Access (FOA) Date

2015-10-02

First Compliant Deposit (FCD) Date

2015-10-01

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