A Photonic Integrated Circuit based Compressive Sensing Radio Frequency Receiver

TL;DR

This paper presents a photonic integrated circuit that enables compressive sensing of RF signals over a 2 GHz bandwidth using a compact, integrated optical system with a mode-locked laser.

Contribution

It introduces a novel photonic integrated circuit design for RF signal reception and compressive sensing, demonstrating high bandwidth capability in a compact form.

Findings

Successfully received 2 GHz RF bandwidth from 2.5 to 4.5 GHz.

Utilized an 11 cm multimode speckle waveguide and a 35 MHz mode-locked laser.

Demonstrated the feasibility of integrated photonic compressive sensing for RF signals.

Abstract

A photonic integrated circuit comprised of an 11 cm multimode speckle waveguide, a 1x32 splitter, and a linear grating coupler array is fabricated and utilized to receive 2 GHz of RF signal bandwidth from 2.5 to 4.5 GHz using a 35 MHz mode locked laser.