Preparation and characterization of highly thulium- and alumina-doped optical fibers for single-frequency fiber lasers
Identifieur interne : 000055 ( Hal/Corpus ); précédent : 000054; suivant : 000056Preparation and characterization of highly thulium- and alumina-doped optical fibers for single-frequency fiber lasers
Auteurs : Pavel Honzatko ; Anirban Dhar ; Ivan Kasik ; Ondrej Podrazky ; Vlastimil Matejec ; Pavel Peterka ; Wilfried Blanc ; Bernard DussardierSource :
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Abstract
Thulium-doped fibers suitable for core-pumped single-frequency lasers were fabricated by the modified chemical vapor deposition (MCVD) method. Refractive index profile, doping profile and spectral absorption was measured. High doping concentration of thulium ions should be achieved to allow for high absorption of light at a pump wavelength while the thulium ions clustering should be avoided to prevent the cooperative upconversion and quenching processes. The fabricated fibers featured pump absorption up to 70dB/m at a pump wavelength of 1611nm. The single-frequency master oscillator with a resonator composed of a pair of fiber Bragg gratings and a thulium-doped fiber was demonstrated with predominantly single ended operation. We achieved a slope efficiency of 22\% and a threshold of 22mW at a lasing wavelength of 1944nm.
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DOI: 10.1117/12.912536
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Hal:hal-00732164Le document en format XML
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<profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>Chemical vapor deposition</term>
<term>Doping</term>
<term>Fiber Bragg gratings</term>
<term>Fiber lasers</term>
<term>Ions</term>
<term>Lasers</term>
<term>Optical fibers</term>
<term>Oscillators</term>
<term>Refractive index</term>
<term>single-frequency master oscillators Absorption</term>
<term>thulium-doped fiber lasers</term>
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<front><div type="abstract" xml:lang="en">Thulium-doped fibers suitable for core-pumped single-frequency lasers were fabricated by the modified chemical vapor deposition (MCVD) method. Refractive index profile, doping profile and spectral absorption was measured. High doping concentration of thulium ions should be achieved to allow for high absorption of light at a pump wavelength while the thulium ions clustering should be avoided to prevent the cooperative upconversion and quenching processes. The fabricated fibers featured pump absorption up to 70dB/m at a pump wavelength of 1611nm. The single-frequency master oscillator with a resonator composed of a pair of fiber Bragg gratings and a thulium-doped fiber was demonstrated with predominantly single ended operation. We achieved a slope efficiency of 22\% and a threshold of 22mW at a lasing wavelength of 1944nm.</div>
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<editor role="depositor"><persName><forename>Bernard</forename>
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<editionStmt><edition n="v1" type="current"><date type="whenSubmitted">2012-09-14 10:26:49</date>
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<date type="whenProduced">2011-08-24</date>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Preparation and characterization of highly thulium- and alumina-doped optical fibers for single-frequency fiber lasers</title>
<author role="crp"><persName><forename type="first">Pavel</forename>
<surname>Honzatko</surname>
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<email>honzatko@ufe.cz</email>
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<author role="aut"><persName><forename type="first">Anirban</forename>
<surname>Dhar</surname>
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<author role="aut"><persName><forename type="first">Ivan</forename>
<surname>Kasik</surname>
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<idno type="halAuthorId">762030</idno>
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<author role="aut"><persName><forename type="first">Ondrej</forename>
<surname>Podrazky</surname>
</persName>
<idno type="halAuthorId">664512</idno>
<affiliation ref="#struct-175660"></affiliation>
</author>
<author role="aut"><persName><forename type="first">Vlastimil</forename>
<surname>Matejec</surname>
</persName>
<idno type="halAuthorId">175107</idno>
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</author>
<author role="aut"><persName><forename type="first">Pavel</forename>
<surname>Peterka</surname>
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<idno type="halAuthorId">343537</idno>
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<author role="aut"><persName><forename type="first">Wilfried</forename>
<surname>Blanc</surname>
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<idno type="halAuthorId">469449</idno>
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</author>
<author role="aut"><persName><forename type="first">Bernard</forename>
<surname>Dussardier</surname>
</persName>
<email>bernard.dussardier@unice.fr</email>
<idno type="halAuthorId">343535</idno>
<affiliation ref="#struct-199959"></affiliation>
</author>
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<monogr><idno type="halJournalId" status="VALID">20421</idno>
<title level="j">SPIE Proceedings Series</title>
<title level="m">Photonics, Devices, and Systems V</title>
<meeting><title>7th International Conference on Photonics, Device and Systems</title>
<date type="start">2011-08-24</date>
<date type="end">2011-08-26</date>
<settlement>Prague</settlement>
<country key="CZ">Czech Republic</country>
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<imprint><biblScope unit="volume">8306</biblScope>
<biblScope unit="pp">830608</biblScope>
<date type="datePub">2011-10-11</date>
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<idno type="arxiv">1209.3224</idno>
<idno type="doi">10.1117/12.912536</idno>
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<profileDesc><langUsage><language ident="en">English</language>
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<textClass><keywords scheme="author"><term xml:lang="en">thulium-doped fibers</term>
<term xml:lang="en">thulium-doped fiber lasers</term>
<term xml:lang="en">single-frequency master oscillators Absorption</term>
<term xml:lang="en">Chemical vapor deposition</term>
<term xml:lang="en">Doping</term>
<term xml:lang="en">Fiber Bragg gratings</term>
<term xml:lang="en">Fiber lasers</term>
<term xml:lang="en">Ions</term>
<term xml:lang="en">Lasers</term>
<term xml:lang="en">Optical fibers</term>
<term xml:lang="en">Oscillators</term>
<term xml:lang="en">Refractive index</term>
</keywords>
<classCode scheme="halDomain" n="phys.phys.phys-optics">Physics [physics]/Physics [physics]/Optics [physics.optics]</classCode>
<classCode scheme="halTypology" n="COMM">Conference papers</classCode>
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<abstract xml:lang="en">Thulium-doped fibers suitable for core-pumped single-frequency lasers were fabricated by the modified chemical vapor deposition (MCVD) method. Refractive index profile, doping profile and spectral absorption was measured. High doping concentration of thulium ions should be achieved to allow for high absorption of light at a pump wavelength while the thulium ions clustering should be avoided to prevent the cooperative upconversion and quenching processes. The fabricated fibers featured pump absorption up to 70dB/m at a pump wavelength of 1611nm. The single-frequency master oscillator with a resonator composed of a pair of fiber Bragg gratings and a thulium-doped fiber was demonstrated with predominantly single ended operation. We achieved a slope efficiency of 22\% and a threshold of 22mW at a lasing wavelength of 1944nm.</abstract>
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