High-resolution, on-chip RF photonic signal processor using Brillouin gain shaping and RF interference

Abstract Integrated microwave photonics has strongly emerged as a next-generation technology to address limitations of conventional RF electronics for wireless communications. High-resolution RF signal processing still remains a challenge due to limitations in technology that offer sub-GHz spectral...

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Autores principales:	Amol Choudhary, Yang Liu, Blair Morrison, Khu Vu, Duk-Yong Choi, Pan Ma, Stephen Madden, David Marpaung, Benjamin J. Eggleton
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ba56cd7e3dad4aea8e93564ca21612eb
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spelling	oai:doaj.org-article:ba56cd7e3dad4aea8e93564ca21612eb2021-12-02T15:05:47ZHigh-resolution, on-chip RF photonic signal processor using Brillouin gain shaping and RF interference10.1038/s41598-017-06270-42045-2322https://doaj.org/article/ba56cd7e3dad4aea8e93564ca21612eb2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06270-4https://doaj.org/toc/2045-2322Abstract Integrated microwave photonics has strongly emerged as a next-generation technology to address limitations of conventional RF electronics for wireless communications. High-resolution RF signal processing still remains a challenge due to limitations in technology that offer sub-GHz spectral resolution, in particular at high carrier frequencies. In this paper, we present an on-chip high-resolution RF signal processor, capable of providing high-suppression spectral filtering, large phase shifts and ns-scale time delays. This was achieved through tailoring of the Brillouin gain profiles using Stokes and anti-Stokes resonances combined with RF interferometry on a low-loss photonic chip with strong opto-acoustic interactions. Using an optical power of <40 mW, reconfigurable filters with a bandwidth of ~20 MHz and an extinction ratio in excess of 30 dB are synthesized. Through the concept of vector addition of RF signals we demonstrate, almost an order of magnitude amplification in the phase and delay compared to devices purely based upon the slow-light effect of Brillouin scattering. This concept allows for versatile and power-efficient manipulation of the amplitude and phase of RF signals on a photonic chip for applications in wireless communications including software defined radios and beam forming.Amol ChoudharyYang LiuBlair MorrisonKhu VuDuk-Yong ChoiPan MaStephen MaddenDavid MarpaungBenjamin J. EggletonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Amol Choudhary Yang Liu Blair Morrison Khu Vu Duk-Yong Choi Pan Ma Stephen Madden David Marpaung Benjamin J. Eggleton High-resolution, on-chip RF photonic signal processor using Brillouin gain shaping and RF interference
description	Abstract Integrated microwave photonics has strongly emerged as a next-generation technology to address limitations of conventional RF electronics for wireless communications. High-resolution RF signal processing still remains a challenge due to limitations in technology that offer sub-GHz spectral resolution, in particular at high carrier frequencies. In this paper, we present an on-chip high-resolution RF signal processor, capable of providing high-suppression spectral filtering, large phase shifts and ns-scale time delays. This was achieved through tailoring of the Brillouin gain profiles using Stokes and anti-Stokes resonances combined with RF interferometry on a low-loss photonic chip with strong opto-acoustic interactions. Using an optical power of <40 mW, reconfigurable filters with a bandwidth of ~20 MHz and an extinction ratio in excess of 30 dB are synthesized. Through the concept of vector addition of RF signals we demonstrate, almost an order of magnitude amplification in the phase and delay compared to devices purely based upon the slow-light effect of Brillouin scattering. This concept allows for versatile and power-efficient manipulation of the amplitude and phase of RF signals on a photonic chip for applications in wireless communications including software defined radios and beam forming.
format	article
author	Amol Choudhary Yang Liu Blair Morrison Khu Vu Duk-Yong Choi Pan Ma Stephen Madden David Marpaung Benjamin J. Eggleton
author_facet	Amol Choudhary Yang Liu Blair Morrison Khu Vu Duk-Yong Choi Pan Ma Stephen Madden David Marpaung Benjamin J. Eggleton
author_sort	Amol Choudhary
title	High-resolution, on-chip RF photonic signal processor using Brillouin gain shaping and RF interference
title_short	High-resolution, on-chip RF photonic signal processor using Brillouin gain shaping and RF interference
title_full	High-resolution, on-chip RF photonic signal processor using Brillouin gain shaping and RF interference
title_fullStr	High-resolution, on-chip RF photonic signal processor using Brillouin gain shaping and RF interference
title_full_unstemmed	High-resolution, on-chip RF photonic signal processor using Brillouin gain shaping and RF interference
title_sort	high-resolution, on-chip rf photonic signal processor using brillouin gain shaping and rf interference
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/ba56cd7e3dad4aea8e93564ca21612eb
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High-resolution, on-chip RF photonic signal processor using Brillouin gain shaping and RF interference

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