Interpretable inverse-designed cavity for on-chip nonlinear and quantum optics

Inverse design is a powerful tool in wave-physics and in particular in photonics for compact, high-performance devices. To date, applications have mostly been limited to linear systems and it has rarely been investigated or demonstrated in the nonlinear regime. In addition, the "black box"...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2023-08
Main Authors: Jia, Zhetao, Qarony, Wayesh, Park, Jagang, Hooten, Sean, Wen, Difan, Zhiyenbayev, Yertay, Seclì, Matteo, Redjem, Walid, Dhuey, Scott, Schwartzberg, Adam, Yablonovitch, Eli, Kanté, Boubacar
Format: Article
Language:English
Subjects:
Four-wave mixing
Inverse design
Light sources
Linear systems
Nonlinear control
Phase matching
Photons
Quantum optics
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Inverse design is a powerful tool in wave-physics and in particular in photonics for compact, high-performance devices. To date, applications have mostly been limited to linear systems and it has rarely been investigated or demonstrated in the nonlinear regime. In addition, the "black box" nature of inverse design techniques has hindered the understanding of optimized inverse-designed structures. We propose an inverse design method with interpretable results to enhance the efficiency of on-chip photon generation rate through nonlinear processes by controlling the effective phase-matching conditions. We fabricate and characterize a compact, inverse-designed device using a silicon-on-insulator platform that allows a spontaneous four-wave mixing process to generate photon pairs at 1.1MHz with a coincidence to accidental ratio of 162. Our design method accounts for fabrication constraints and can be used for scalable quantum light sources in large-scale communication and computing applications.
ISSN:2331-8422
DOI:10.48550/arxiv.2308.03036