A Photonic Integrated Circuit based Compressive Sensing Radio Frequency Receiver Using Waveguide Speckle
Applied Physics
2021-07-07 v1 Optics
Abstract
A photonic integrated circuit (PIC) 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 radio-frequency (RF) signal bandwidth from 2.5 to 4.5 GHz using compressive sensing (CS). Incoming RF signals are modulated onto chirped optical pulses which are input to the multimode waveguide. The multimode waveguide produces the random projections needed for CS via optical speckle. The time-varying phase and amplitude of two test RF signals between 2.5 and 4.5 GHz are successfully recovered using the standard penalized -norm method. The use of a passive PIC serves as an initial step towards the miniaturization of a compressive sensing RF receiver.
Cite
@article{arxiv.2008.10690,
title = {A Photonic Integrated Circuit based Compressive Sensing Radio Frequency Receiver Using Waveguide Speckle},
author = {David B. Borlaug and Steven Estrella and Carl Boone and George A. Sefler and Thomas Justin Shaw and Angsuman Roy and Leif Johansson and George C. Valley},
journal= {arXiv preprint arXiv:2008.10690},
year = {2021}
}