Super-tunable, broadband up-conversion of a high-power CW laser in an engineered nonlinear crystal

Abstract A specially-designed chirped periodically poled lithium niobate nonlinear crystal was fabricated with a phase-matching bandwidth as large as 50 nm for sum frequency generation to operate at room and higher temperatures. This device also benefits from insensitivity to laser frequency drift a...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Ameneh Bostani, Amirhossein Tehranchi, Raman Kashyap
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/bb9bc119738b44889d06491a1c514d65
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:bb9bc119738b44889d06491a1c514d65
record_format	dspace
spelling	oai:doaj.org-article:bb9bc119738b44889d06491a1c514d652021-12-02T12:31:51ZSuper-tunable, broadband up-conversion of a high-power CW laser in an engineered nonlinear crystal10.1038/s41598-017-00974-32045-2322https://doaj.org/article/bb9bc119738b44889d06491a1c514d652017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00974-3https://doaj.org/toc/2045-2322Abstract A specially-designed chirped periodically poled lithium niobate nonlinear crystal was fabricated with a phase-matching bandwidth as large as 50 nm for sum frequency generation to operate at room and higher temperatures. This device also benefits from insensitivity to laser frequency drift and fine alignment. The loosely-focused beam position of a high-power CW laser at around 1550 nm is optimized within the grating for maximum up-conversion efficiency, to realize a super-tunable source in the range of 770–778 nm by tuning a narrowband control signal over 30 nm in the communication band. This device is demonstrated to be fully phased-matched simultaneously for both second-order nonlinear up-conversion processes, namely second harmonic generation and sum frequency generation. The measurement of the generated sum-frequency power versus wavelength agrees well with the theory. The device allows for the creation of tunable broadband CW sources at shorter wavelengths with potentially high power.Ameneh BostaniAmirhossein TehranchiRaman KashyapNature 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 Ameneh Bostani Amirhossein Tehranchi Raman Kashyap Super-tunable, broadband up-conversion of a high-power CW laser in an engineered nonlinear crystal
description	Abstract A specially-designed chirped periodically poled lithium niobate nonlinear crystal was fabricated with a phase-matching bandwidth as large as 50 nm for sum frequency generation to operate at room and higher temperatures. This device also benefits from insensitivity to laser frequency drift and fine alignment. The loosely-focused beam position of a high-power CW laser at around 1550 nm is optimized within the grating for maximum up-conversion efficiency, to realize a super-tunable source in the range of 770–778 nm by tuning a narrowband control signal over 30 nm in the communication band. This device is demonstrated to be fully phased-matched simultaneously for both second-order nonlinear up-conversion processes, namely second harmonic generation and sum frequency generation. The measurement of the generated sum-frequency power versus wavelength agrees well with the theory. The device allows for the creation of tunable broadband CW sources at shorter wavelengths with potentially high power.
format	article
author	Ameneh Bostani Amirhossein Tehranchi Raman Kashyap
author_facet	Ameneh Bostani Amirhossein Tehranchi Raman Kashyap
author_sort	Ameneh Bostani
title	Super-tunable, broadband up-conversion of a high-power CW laser in an engineered nonlinear crystal
title_short	Super-tunable, broadband up-conversion of a high-power CW laser in an engineered nonlinear crystal
title_full	Super-tunable, broadband up-conversion of a high-power CW laser in an engineered nonlinear crystal
title_fullStr	Super-tunable, broadband up-conversion of a high-power CW laser in an engineered nonlinear crystal
title_full_unstemmed	Super-tunable, broadband up-conversion of a high-power CW laser in an engineered nonlinear crystal
title_sort	super-tunable, broadband up-conversion of a high-power cw laser in an engineered nonlinear crystal
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/bb9bc119738b44889d06491a1c514d65
work_keys_str_mv	AT amenehbostani supertunablebroadbandupconversionofahighpowercwlaserinanengineerednonlinearcrystal AT amirhosseintehranchi supertunablebroadbandupconversionofahighpowercwlaserinanengineerednonlinearcrystal AT ramankashyap supertunablebroadbandupconversionofahighpowercwlaserinanengineerednonlinearcrystal
_version_	1718394238888050688

Super-tunable, broadband up-conversion of a high-power CW laser in an engineered nonlinear crystal

Ejemplares similares