Randomly polarised beam produced by magnetooptically Q-switched laser

Abstract Diode-pumped solid-state micro lasers are compact (centimetre-scale), highly stable, and efficient. Previously, we reported Q-switched lasers incorporating rare-earth substituted iron garnet (RIG) film. Here, the first demonstration of the magnetooptical (MO) Q-switch in an Nd:YAG laser cav...

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Autores principales:	Ryohei Morimoto, Taichi Goto, Takunori Taira, John Pritchard, Mani Mina, Hiroyuki Takagi, Yuichi Nakamura, Pang Boey Lim, Hironaga Uchida, Mitsuteru Inoue
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/19314035d1cd45d6a70e804221639ed1
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spelling	oai:doaj.org-article:19314035d1cd45d6a70e804221639ed12021-12-02T15:06:22ZRandomly polarised beam produced by magnetooptically Q-switched laser10.1038/s41598-017-15826-32045-2322https://doaj.org/article/19314035d1cd45d6a70e804221639ed12017-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-15826-3https://doaj.org/toc/2045-2322Abstract Diode-pumped solid-state micro lasers are compact (centimetre-scale), highly stable, and efficient. Previously, we reported Q-switched lasers incorporating rare-earth substituted iron garnet (RIG) film. Here, the first demonstration of the magnetooptical (MO) Q-switch in an Nd:YAG laser cavity is performed. We fabricate a quasi-continuous-wave (QCW) diode-pumped Nd:YAG laser cavity, which is shortened to 10 mm in length and which contains an RIG film and a pair of small coils. This cavity yields a 1,064.58-nm-wavelength pulse with 25-ns duration and 1.1-kW peak power at a 1-kHz repetition ratio. Further, the polarisation state is random, due to the isotropic crystal structure of Nd:YAG and the fact that the MO Q-switch incorporating the RIG film does not require the presence of polarisers in the cavity. This is also the first report of an MO Q-switch producing random polarisation.Ryohei MorimotoTaichi GotoTakunori TairaJohn PritchardMani MinaHiroyuki TakagiYuichi NakamuraPang Boey LimHironaga UchidaMitsuteru InoueNature 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 Ryohei Morimoto Taichi Goto Takunori Taira John Pritchard Mani Mina Hiroyuki Takagi Yuichi Nakamura Pang Boey Lim Hironaga Uchida Mitsuteru Inoue Randomly polarised beam produced by magnetooptically Q-switched laser
description	Abstract Diode-pumped solid-state micro lasers are compact (centimetre-scale), highly stable, and efficient. Previously, we reported Q-switched lasers incorporating rare-earth substituted iron garnet (RIG) film. Here, the first demonstration of the magnetooptical (MO) Q-switch in an Nd:YAG laser cavity is performed. We fabricate a quasi-continuous-wave (QCW) diode-pumped Nd:YAG laser cavity, which is shortened to 10 mm in length and which contains an RIG film and a pair of small coils. This cavity yields a 1,064.58-nm-wavelength pulse with 25-ns duration and 1.1-kW peak power at a 1-kHz repetition ratio. Further, the polarisation state is random, due to the isotropic crystal structure of Nd:YAG and the fact that the MO Q-switch incorporating the RIG film does not require the presence of polarisers in the cavity. This is also the first report of an MO Q-switch producing random polarisation.
format	article
author	Ryohei Morimoto Taichi Goto Takunori Taira John Pritchard Mani Mina Hiroyuki Takagi Yuichi Nakamura Pang Boey Lim Hironaga Uchida Mitsuteru Inoue
author_facet	Ryohei Morimoto Taichi Goto Takunori Taira John Pritchard Mani Mina Hiroyuki Takagi Yuichi Nakamura Pang Boey Lim Hironaga Uchida Mitsuteru Inoue
author_sort	Ryohei Morimoto
title	Randomly polarised beam produced by magnetooptically Q-switched laser
title_short	Randomly polarised beam produced by magnetooptically Q-switched laser
title_full	Randomly polarised beam produced by magnetooptically Q-switched laser
title_fullStr	Randomly polarised beam produced by magnetooptically Q-switched laser
title_full_unstemmed	Randomly polarised beam produced by magnetooptically Q-switched laser
title_sort	randomly polarised beam produced by magnetooptically q-switched laser
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/19314035d1cd45d6a70e804221639ed1
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Randomly polarised beam produced by magnetooptically Q-switched laser

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