Wavelength resolved intracavity measurement of the cross sections of a Tm-doped fiber.
Identifieur interne : 000239 ( Ncbi/Merge ); précédent : 000238; suivant : 000240Wavelength resolved intracavity measurement of the cross sections of a Tm-doped fiber.
Auteurs : Martin Engelbrecht [Allemagne] ; Frithjof Haxsen ; Dieter Wandt ; Dietmar KrachtSource :
- Optics express [ 1094-4087 ] ; 2008.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Thulium.
- instrumentation : Fiber Optic Technology, Oscillometry.
- Equipment Design, Equipment Failure Analysis, Lasers, Radiometry.
Abstract
The wavelength dependent measurement of the relaxation oscillation frequency in a laser oscillator allows the study of the three- and four-level nature of the active material. Accordingly we present a tunable thulium doped fiber laser that covers the transition from three- to four-level operation at 2025 nm, characterized by the vanishing occupation of the terminal laser level. The laser is tunable from 1864 nm to 2075 nm with a linewidth below 0.3 nm. A maximum output power of 3.8 W at 1930 nm was achieved with a slope efficiency of 33.6% and an absorbed pump power of 17.5 W. Absorption and emission cross sections were derived over the tuning range by an intracavity measurement method.
PubMed: 18542239
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Accordingly we present a tunable thulium doped fiber laser that covers the transition from three- to four-level operation at 2025 nm, characterized by the vanishing occupation of the terminal laser level. The laser is tunable from 1864 nm to 2075 nm with a linewidth below 0.3 nm. A maximum output power of 3.8 W at 1930 nm was achieved with a slope efficiency of 33.6% and an absorbed pump power of 17.5 W. Absorption and emission cross sections were derived over the tuning range by an intracavity measurement method.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">18542239</PMID><DateCreated><Year>2008</Year><Month>06</Month><Day>10</Day></DateCreated><DateCompleted><Year>2008</Year><Month>08</Month><Day>21</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1094-4087</ISSN><JournalIssue CitedMedium="Internet"><Volume>16</Volume><Issue>3</Issue><PubDate><Year>2008</Year><Month>Feb</Month><Day>4</Day></PubDate></JournalIssue><Title>Optics express</Title><ISOAbbreviation>Opt Express</ISOAbbreviation></Journal><ArticleTitle>Wavelength resolved intracavity measurement of the cross sections of a Tm-doped fiber.</ArticleTitle><Pagination><MedlinePgn>1610-5</MedlinePgn></Pagination><Abstract><AbstractText>The wavelength dependent measurement of the relaxation oscillation frequency in a laser oscillator allows the study of the three- and four-level nature of the active material. Accordingly we present a tunable thulium doped fiber laser that covers the transition from three- to four-level operation at 2025 nm, characterized by the vanishing occupation of the terminal laser level. The laser is tunable from 1864 nm to 2075 nm with a linewidth below 0.3 nm. A maximum output power of 3.8 W at 1930 nm was achieved with a slope efficiency of 33.6% and an absorbed pump power of 17.5 W. 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