We review the latest breakthroughs in ultrafast fiber laser technology in the mid-IR wavelength range ≥ 2 μm. In particular, we concentrate on two novel laser systems built around passively mode-locked Tm:fiber lasers and fiber-based Cr:ZnS lasers, generating sub-100 femtosecond pulses and frequency combs with several Watt average output powers, hundreds of kilowatts peak powers and tens of nanojoule pulse energies. The tunability in the broad wavelength range between 2 and 2.5 μm as well as a simple all-silica-fiber design makes the Tm-fiber laser a truly unique broadband light source, particularly relevant for applications in gas sensing, fine material processing of semiconductors, composite materials, glasses and plastics, as well as for brain surgery, breath analysis, remote sensing and stand-off trace gas detection, especially in oil and gas industry. We also review techniques for coherent supercontinuum generation in the mid-IR, including a novel technique of direct generation of the supercontinuum in the fiber. A competing Watt level few-optical cycle Cr:ZnS laser operating at 2.4 μm (Patent pending, ATLA Lasers, Trondheim, Norway) is distinguished by extremely short pulse duration of only 41 fs, reliability and compactness. This unique ultrashort-pulsed laser generates intrinsically coherent frequency combs, which further extends the application range to high-resolution and high-sensitivity spectroscopy and optical clocks.
en
dc.description.sponsorship
Austrian Science Fund (FWF)
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dc.description.sponsorship
European project “GRAPHENICS”
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dc.description.sponsorship
The Norwegian Re-search Council (NFR)
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dc.description.sponsorship
MARTEC-MLR
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dc.description.sponsorship
Nano 2021
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dc.language
English
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dc.language.iso
en
-
dc.publisher
IEEE
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dc.relation.ispartof
IEEE Journal of Selected Topics in Quantum Electronics
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dc.rights.uri
http://rightsstatements.org/vocab/InC/1.0/
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dc.subject
optical pulse generation
en
dc.subject
fiber lasers
en
dc.subject
laser mode locking
en
dc.subject
laser tuning
en
dc.subject
supercontinuum generation
en
dc.title
Mid-IR ultrashort pulsed fiber-based lasers
en
dc.type
Article
en
dc.type
Artikel
de
dc.rights.license
Urheberrechtsschutz
de
dc.rights.license
In Copyright
en
dc.relation.grantno
P24916
-
dc.relation.grantno
FRITEK/191614
-
dc.relation.grantno
N21968654
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dc.rights.holder
2014 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistributionrequires IEEE permission. See http://www.ieee.org/publicationsstandards/publications/rights/index.html for more information.
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dc.type.category
Original Research Article
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true
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tuw.peerreviewed
true
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tuw.version
vor
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dcterms.isPartOf.title
IEEE Journal of Selected Topics in Quantum Electronics
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tuw.publication.orgunit
E387 - Institut für Photonik
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tuw.publisher.doi
10.1109/JSTQE.2014.2310655
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dc.identifier.eissn
1558-4542
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dc.identifier.libraryid
AC11359752
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dc.identifier.urn
urn:nbn:at:at-ubtuw:3-1289
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tuw.author.orcid
0000-0002-4421-863X
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tuw.author.orcid
0000-0002-4703-9653
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dc.rights.identifier
Urheberrechtsschutz
de
dc.rights.identifier
In Copyright
en
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true
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item.languageiso639-1
en
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item.fulltext
with Fulltext
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Open Access
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research article
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open
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http://purl.org/coar/resource_type/c_2df8fbb1
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Publications
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E387 - Institut für Photonik
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crisitem.author.dept
E387 - Institut für Photonik
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crisitem.author.dept
E387 - Institut für Photonik
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E387-01 - Forschungsbereich Photonik
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crisitem.author.orcid
0000-0002-4703-9653
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crisitem.author.parentorg
E350 - Fakultät für Elektrotechnik und Informationstechnik
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crisitem.author.parentorg
E350 - Fakultät für Elektrotechnik und Informationstechnik
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crisitem.author.parentorg
E350 - Fakultät für Elektrotechnik und Informationstechnik