Integrated multi-port circulators for unidirectional optical information transport

Abstract On-chip photonic networks hold great promise for enabling next-generation high speed computation and communication systems. It is currently envisioned that future integrated photonic networks will be capable of processing dense digital information on a single monolithic platform by involvin...

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Autores principales:	Parinaz Aleahmad, Mercedeh Khajavikhan, Demetrios Christodoulides, Patrick LiKamWa
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9585d7e2631b4a6aa44b4258e6d016ee
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spelling	oai:doaj.org-article:9585d7e2631b4a6aa44b4258e6d016ee2021-12-02T15:05:22ZIntegrated multi-port circulators for unidirectional optical information transport10.1038/s41598-017-02340-92045-2322https://doaj.org/article/9585d7e2631b4a6aa44b4258e6d016ee2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02340-9https://doaj.org/toc/2045-2322Abstract On-chip photonic networks hold great promise for enabling next-generation high speed computation and communication systems. It is currently envisioned that future integrated photonic networks will be capable of processing dense digital information on a single monolithic platform by involving a multitude of optical components ranging from lasers to modulators, to routers, interconnects and detectors. Among the possible functionalities to be incorporated in such arrangements is the ability to route information in a unidirectional way among N-ports - a capability typically afforded through the use of optical circulators. Yet, in many settings, what is basically needed is re-routing information in a unidirectional fashion without necessarily invoking optical isolation. Of interest would be to devise strategies through which miniaturized optical devices can be monolithically fabricated on light-emitting semiconductors by solely relying on physical properties that are indigenous to the material itself. By exploiting the interplay between non-Hermiticity and nonlinearity, here we demonstrate a new class of chip-scale information transport devices on spatially modified III-V quantum well systems. These unidirectional structures are broadband (over 2.5 THz) at 1550 nm, effectively loss-free, color-preserving, and in proof-of-principle demonstrations have provided 23 dB isolation when used under pulsed-mode conditions at milliwatt (mW) power levels.Parinaz AleahmadMercedeh KhajavikhanDemetrios ChristodoulidesPatrick LiKamWaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Parinaz Aleahmad Mercedeh Khajavikhan Demetrios Christodoulides Patrick LiKamWa Integrated multi-port circulators for unidirectional optical information transport
description	Abstract On-chip photonic networks hold great promise for enabling next-generation high speed computation and communication systems. It is currently envisioned that future integrated photonic networks will be capable of processing dense digital information on a single monolithic platform by involving a multitude of optical components ranging from lasers to modulators, to routers, interconnects and detectors. Among the possible functionalities to be incorporated in such arrangements is the ability to route information in a unidirectional way among N-ports - a capability typically afforded through the use of optical circulators. Yet, in many settings, what is basically needed is re-routing information in a unidirectional fashion without necessarily invoking optical isolation. Of interest would be to devise strategies through which miniaturized optical devices can be monolithically fabricated on light-emitting semiconductors by solely relying on physical properties that are indigenous to the material itself. By exploiting the interplay between non-Hermiticity and nonlinearity, here we demonstrate a new class of chip-scale information transport devices on spatially modified III-V quantum well systems. These unidirectional structures are broadband (over 2.5 THz) at 1550 nm, effectively loss-free, color-preserving, and in proof-of-principle demonstrations have provided 23 dB isolation when used under pulsed-mode conditions at milliwatt (mW) power levels.
format	article
author	Parinaz Aleahmad Mercedeh Khajavikhan Demetrios Christodoulides Patrick LiKamWa
author_facet	Parinaz Aleahmad Mercedeh Khajavikhan Demetrios Christodoulides Patrick LiKamWa
author_sort	Parinaz Aleahmad
title	Integrated multi-port circulators for unidirectional optical information transport
title_short	Integrated multi-port circulators for unidirectional optical information transport
title_full	Integrated multi-port circulators for unidirectional optical information transport
title_fullStr	Integrated multi-port circulators for unidirectional optical information transport
title_full_unstemmed	Integrated multi-port circulators for unidirectional optical information transport
title_sort	integrated multi-port circulators for unidirectional optical information transport
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/9585d7e2631b4a6aa44b4258e6d016ee
work_keys_str_mv	AT parinazaleahmad integratedmultiportcirculatorsforunidirectionalopticalinformationtransport AT mercedehkhajavikhan integratedmultiportcirculatorsforunidirectionalopticalinformationtransport AT demetrioschristodoulides integratedmultiportcirculatorsforunidirectionalopticalinformationtransport AT patricklikamwa integratedmultiportcirculatorsforunidirectionalopticalinformationtransport
_version_	1718388847308439552

Integrated multi-port circulators for unidirectional optical information transport

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