First and second order all-optical integrating functions in a photonic integrated circuit

TL;DR

This paper demonstrates all-optical temporal integration of optical waveforms using a CMOS-compatible micro-ring resonator, enabling ultra-fast data processing and real-time analysis of differential equations.

Contribution

The work introduces a novel integrated photonic device capable of performing first and second order all-optical integrations at over 400GHz bandwidth.

Findings

Achieved temporal integration of waveforms with ~1.9ps features.

Implemented 1st- and 2nd-order integrations on a CMOS-compatible chip.

Demonstrated potential for ultra-fast optical data processing and computing.

Abstract

We demonstrate all-optical temporal integration of arbitrary optical waveforms with temporal features as short as ~1.9ps. By using a four-port micro-ring resonator based on CMOS compatible doped glass technology we perform the 1st- and 2nd-order cumulative time integral of optical signals over a bandwidth that exceeds 400GHz. This device has applications for a wide range of ultra-fast data processing and pulse shaping functions as well as in the field of optical computing for the real-time analysis of differential equations.