Pixelated non-volatile programmable photonic integrated circuits with 20-level intermediate states

Multi-level programmable photonic integrated circuits (PICs) and optical metasurfaces have gained widespread attention in many fields, such as neuromorphic photonics, optical communications, and quantum information. In this paper, we propose pixelated programmable Si 3 N 4 PICs with record-high 20-l...

Full description

Saved in:
Bibliographic Details
Published in:International Journal of Extreme Manufacturing 2024-06, Vol.6 (3), p.35501
Main Authors: Chen, Wenyu, Liu, Shiyuan, Zhu, Jinlong
Format: Article
Language:English
Subjects:
Amplitude modulation
Integrated circuits
Metasurfaces
multi-level intermediate states
Optical communication
Phase change materials
Photonics
programmable photonic integrated circuits
Pulsed lasers
Quantum computing
Quantum phenomena
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Multi-level programmable photonic integrated circuits (PICs) and optical metasurfaces have gained widespread attention in many fields, such as neuromorphic photonics, optical communications, and quantum information. In this paper, we propose pixelated programmable Si 3 N 4 PICs with record-high 20-level intermediate states at 785 nm wavelength. Such flexibility in phase or amplitude modulation is achieved by a programmable Sb 2 S 3 matrix, the footprint of whose elements can be as small as 1.2 μ m, limited only by the optical diffraction limit of an in-house developed pulsed laser writing system. We believe our work lays the foundation for laser-writing ultra-high-level (20 levels and even more) programmable photonic systems and metasurfaces based on phase change materials, which could catalyze diverse applications such as programmable neuromorphic photonics, biosensing, optical computing, photonic quantum computing, and reconfigurable metasurfaces. Pixelated non-volatile programmable photonic integrated circuits are proposed. A record-high 20-level intermediate state of Sb 2 S 3 with a minimal 1.2 μ m spot size is realized using an in-house developed multi-level pulsed-laser writing system. Pixelated programmable multi-level Mach–Zehnder interferometer and multimode interferometer based on Sb 2 S 3 matrix are realized. Very large-scale photonic linear processors based on pixelated Mach–Zehnder interferometer mesh are realized in simulation.
ISSN:2631-8644
2631-7990
DOI:10.1088/2631-7990/ad2c60