On-Chip Vectorial Structured Light Manipulation via Inverse Design

TL;DR

This paper introduces a data-driven inverse design approach for precise manipulation of on-chip vectorial structured light, enabling complex photonic functions through high-dimensional Hilbert space mapping.

Contribution

It presents a novel inverse design method that maps physical light fields to mathematical function spaces, allowing arbitrary on-chip structured light manipulation.

Findings

Achieved light field conversion in on-chip topological photonics

Designed high-performance topological coupling devices with minimal loss

Realized customizable topological routing devices

Abstract

On-chip structured light, with potentially infinite complexity, has emerged as a linchpin in the realm of integrated photonics. However, the realization of arbitrarily tailoring a multitude of light field dimensions in complex media remains a challenge1, Through associating physical light fields and mathematical function spaces by introducing a mapping operator, we proposed a data-driven inverse design method to precisely manipulate between any two structured light fields in the on-chip high-dimensional Hilbert space. To illustrate, light field conversion in on-chip topological photonics was achieved. High-performance topological coupling devices with minimal insertion loss and customizable topological routing devices were designed and realized. Our method provides a new paradigm to enable precise manipulation over the on-chip vectorial structured light and paves the way for the realization of complex photonic functions.