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Tm(3+)/Ho(3+) codoped tellurite fiber laser.

Identifieur interne : 000581 ( PubMed/Corpus ); précédent : 000580; suivant : 000582

Tm(3+)/Ho(3+) codoped tellurite fiber laser.

Auteurs : Yuen Tsang ; Billy Richards ; David Binks ; Joris Lousteau ; Animesh Jha

Source :

RBID : pubmed:18516201

English descriptors

Abstract

Continuous-wave and Q-switched lasing from a Tm(3+)/Ho(3+) codoped tellurite fiber is reported. An Yb(3+)/Er(3+)-doped silica fiber laser operating at 1.6 microm was used as an in-band pump source, exciting the Tm(3+) ions into the (3)F(4) level. Energy is then nonradiatively transferred to the upper laser level, the (5)I(7) state of Ho(3+). The laser transition is from the (5)I(7) level to the (5)I(8) level, and the resulting emission is at 2.1 microm. For continuous wave operation, the slope efficiency was 62% and the threshold 0.1 W; the maximum output demonstrated was 0.16 W. Mechanical Q switching resulted in a pulse of 0.65 microJ energy and 160 ns duration at a repetition rate of 19.4 kHz.

PubMed: 18516201

Links to Exploration step

pubmed:18516201

Le document en format XML

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<name sortKey="Tsang, Yuen" sort="Tsang, Yuen" uniqKey="Tsang Y" first="Yuen" last="Tsang">Yuen Tsang</name>
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<div type="abstract" xml:lang="en">Continuous-wave and Q-switched lasing from a Tm(3+)/Ho(3+) codoped tellurite fiber is reported. An Yb(3+)/Er(3+)-doped silica fiber laser operating at 1.6 microm was used as an in-band pump source, exciting the Tm(3+) ions into the (3)F(4) level. Energy is then nonradiatively transferred to the upper laser level, the (5)I(7) state of Ho(3+). The laser transition is from the (5)I(7) level to the (5)I(8) level, and the resulting emission is at 2.1 microm. For continuous wave operation, the slope efficiency was 62% and the threshold 0.1 W; the maximum output demonstrated was 0.16 W. Mechanical Q switching resulted in a pulse of 0.65 microJ energy and 160 ns duration at a repetition rate of 19.4 kHz.</div>
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