Interpretable inverse-designed cavity for on-chip nonlinear photon pair generation
Abstract
Inverse design is a powerful tool in wave physics for compact, high-performance devices. To date, applications in photonics 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 a rate of 1.1 MHz 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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 09, 2023
- Source ID
- 10.1364/optica.502732
Entities
People
- Adam M Schwartzberg
- Boubacar Kanté
- Difan Wen
- Eli Yablonovitch
- Jagang Park
- Matteo Seclì
- Scott Dhuey
- Sean Hooten
- Walid Redjem
- Wayesh Qarony
- Yertay Zhiyenbayev
- Zhetao Jia
Organizations
- Army Research Office
- Hp
- Lawrence Berkeley National Laboratory
- National Science Foundation
- Office of Naval Research
- United States Department of Energy
- University of California, Berkeley