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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 3 — Feb. 4, 2008
  • pp: 1610–1615

Wavelength resolved intracavity measurement of the cross sections of a Tm-doped fiber

Martin Engelbrecht, Frithjof Haxsen, Dieter Wandt, and Dietmar Kracht  »View Author Affiliations


Optics Express, Vol. 16, Issue 3, pp. 1610-1615 (2008)
http://dx.doi.org/10.1364/OE.16.001610


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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 1864nm to 2075nm with a linewidth below 0.3 nm. A maximum output power of 3.8W at 1930nm was achieved with a slope efficiency of 33.6% and an absorbed pump power of 17.5W. Absorption and emission cross sections were derived over the tuning range by an intracavity measurement method.

© 2008 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3600) Lasers and laser optics : Lasers, tunable

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 21, 2007
Revised Manuscript: January 18, 2008
Manuscript Accepted: January 21, 2008
Published: January 23, 2008

Citation
Martin Engelbrecht, Frithjof Haxsen, Dieter Wandt, and Dietmar Kracht, "Wavelength resolved intracavity measurement of the cross sections of a Tm-doped fiber," Opt. Express 16, 1610-1615 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-3-1610


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References

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