Year: 2025
Type: article
Abstract: We demonstrate the design and optimization of on-chip arbitrary dispersion profiles using deep photonic networks constructed from custom-designed Mach-Zehnder interferometers (MZIs). These photonic networks employ optimizable waveguide tapers, enabling precise engineering of wavelength-dependent dispersion profiles. We experimentally demonstrate a proof-of-concept two-port photonic network that exhibits a highly nonintuitive triangular dispersion profile over the wavelength range of 1.54 μm-1.58 μm while simultaneously achieving a flatband transmission with an insertion loss of less than 0.7 dB. We also illustrate the potential of multi-port photonic networks to enhance design freedom for more complex and customizable dispersion profiles, enabling new possibilities for on-chip dispersion engineering.
Source: Optics Letters
DOI: 10.1364/ol.564441
Institutions: Koç University, Northwestern University
Language: English
Topic: Photonic and Optical Devices
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4410191740