Cascaded counter-propagating nonlinear interactions in highly-efficient sub-µm periodically poled crystals

Abstract Mirrorless optical parametric oscillators (MOPOs) are very attractive parametric devices that rely on the nonlinear interaction of counter-propagating photons to inherently establish distributed feedback, without the use of external mirrors or surface coatings. These devices offer unique sp...

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Autores principales:	Andrius Zukauskas, Anne-Lise Viotti, Charlotte Liljestrand, Valdas Pasiskevicius, Carlota Canalias
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0953cc77f89a4f5b9029439d4dbf5a39
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id	oai:doaj.org-article:0953cc77f89a4f5b9029439d4dbf5a39
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spelling	oai:doaj.org-article:0953cc77f89a4f5b9029439d4dbf5a392021-12-02T12:31:48ZCascaded counter-propagating nonlinear interactions in highly-efficient sub-µm periodically poled crystals10.1038/s41598-017-07016-y2045-2322https://doaj.org/article/0953cc77f89a4f5b9029439d4dbf5a392017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07016-yhttps://doaj.org/toc/2045-2322Abstract Mirrorless optical parametric oscillators (MOPOs) are very attractive parametric devices that rely on the nonlinear interaction of counter-propagating photons to inherently establish distributed feedback, without the use of external mirrors or surface coatings. These devices offer unique spectral and coherence properties that will benefit a large variety of applications ranging from spectroscopy to quantum communications. The major obstacle in exploiting their full potential is ascribed to the difficulty in engineering a nonlinear material in which the generation of counter-propagating waves can be phase matched. Here we present a reliable and consistent technique for fabrication of highly-efficient sub-micrometer periodically poled Rb-doped KTiOPO4. We experimentally demonstrate the first cascaded counter-propagating interactions in which the generated forward signal serves as a pump for a secondary MOPO process, reaching pump depletion larger than 60%. The cascaded process exemplifies the high efficiency of our nonlinear photonic structures. Our domain-engineering technique paves the way to realize counter-propagating schemes and devices that have been deemed unfeasible until now.Andrius ZukauskasAnne-Lise ViottiCharlotte LiljestrandValdas PasiskeviciusCarlota CanaliasNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Andrius Zukauskas Anne-Lise Viotti Charlotte Liljestrand Valdas Pasiskevicius Carlota Canalias Cascaded counter-propagating nonlinear interactions in highly-efficient sub-µm periodically poled crystals
description	Abstract Mirrorless optical parametric oscillators (MOPOs) are very attractive parametric devices that rely on the nonlinear interaction of counter-propagating photons to inherently establish distributed feedback, without the use of external mirrors or surface coatings. These devices offer unique spectral and coherence properties that will benefit a large variety of applications ranging from spectroscopy to quantum communications. The major obstacle in exploiting their full potential is ascribed to the difficulty in engineering a nonlinear material in which the generation of counter-propagating waves can be phase matched. Here we present a reliable and consistent technique for fabrication of highly-efficient sub-micrometer periodically poled Rb-doped KTiOPO4. We experimentally demonstrate the first cascaded counter-propagating interactions in which the generated forward signal serves as a pump for a secondary MOPO process, reaching pump depletion larger than 60%. The cascaded process exemplifies the high efficiency of our nonlinear photonic structures. Our domain-engineering technique paves the way to realize counter-propagating schemes and devices that have been deemed unfeasible until now.
format	article
author	Andrius Zukauskas Anne-Lise Viotti Charlotte Liljestrand Valdas Pasiskevicius Carlota Canalias
author_facet	Andrius Zukauskas Anne-Lise Viotti Charlotte Liljestrand Valdas Pasiskevicius Carlota Canalias
author_sort	Andrius Zukauskas
title	Cascaded counter-propagating nonlinear interactions in highly-efficient sub-µm periodically poled crystals
title_short	Cascaded counter-propagating nonlinear interactions in highly-efficient sub-µm periodically poled crystals
title_full	Cascaded counter-propagating nonlinear interactions in highly-efficient sub-µm periodically poled crystals
title_fullStr	Cascaded counter-propagating nonlinear interactions in highly-efficient sub-µm periodically poled crystals
title_full_unstemmed	Cascaded counter-propagating nonlinear interactions in highly-efficient sub-µm periodically poled crystals
title_sort	cascaded counter-propagating nonlinear interactions in highly-efficient sub-µm periodically poled crystals
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/0953cc77f89a4f5b9029439d4dbf5a39
work_keys_str_mv	AT andriuszukauskas cascadedcounterpropagatingnonlinearinteractionsinhighlyefficientsubμmperiodicallypoledcrystals AT anneliseviotti cascadedcounterpropagatingnonlinearinteractionsinhighlyefficientsubμmperiodicallypoledcrystals AT charlotteliljestrand cascadedcounterpropagatingnonlinearinteractionsinhighlyefficientsubμmperiodicallypoledcrystals AT valdaspasiskevicius cascadedcounterpropagatingnonlinearinteractionsinhighlyefficientsubμmperiodicallypoledcrystals AT carlotacanalias cascadedcounterpropagatingnonlinearinteractionsinhighlyefficientsubμmperiodicallypoledcrystals
_version_	1718394257589403648

Cascaded counter-propagating nonlinear interactions in highly-efficient sub-µm periodically poled crystals

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