Detecting and Receiving Phase Modulated Signals with a Rydberg Atom-Based Mixer
Abstract
Recently, we introduced a Rydberg-atom based mixer capable of detecting and measuring the phase of a radio-frequency field through the electromagnetically induced transparency (EIT) and Autler-Townes (AT) effect. The ability to measure phase with this mixer allows for an atom-based receiver to detect digital modulated communication signals. In this paper, we demonstrate detection and reception of digital modulated signals based on various phase-shift keying approaches. We demonstrate Rydberg atom-based digital reception of binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), and quadrature amplitude (QAM) modulated signals over a 19.626~GHz carrier to transmit and receive a bit stream in cesium vapor. We present measured values of Error Vector Magnitude (EVM, a common communication metric used to assess how accurate a symbol or bit stream is received) as a function of symbol rate for BPSK, QPSK, 16QAM, 32QAM, and 64QAM modulation schemes. These results allow us to discuss the bandwidth of a Rydberg-atom based receiver system.
Cite
@article{arxiv.1903.10644,
title = {Detecting and Receiving Phase Modulated Signals with a Rydberg Atom-Based Mixer},
author = {Christopher L. Holloway and Matthew T. Simons and Joshua A. Gordon and David Novotny},
journal= {arXiv preprint arXiv:1903.10644},
year = {2019}
}
Comments
5 pages, 6 figures,