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Optics Letters

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  • Vol. 27, Iss. 22 — Nov. 15, 2002
  • pp: 1980–1982

Compact diode-pumped passively Q-switched tunable Er-Yb double-clad fiber laser

M. Laroche, A. M. Chardon, J. Nilsson, D. P. Shepherd, W. A. Clarkson, S. Girard, and R. Moncorgé  »View Author Affiliations


Optics Letters, Vol. 27, Issue 22, pp. 1980-1982 (2002)
http://dx.doi.org/10.1364/OL.27.001980


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Abstract

Efficient repetitive passive Q switching of a cladding-pumped Er–Yb fiber laser has been demonstrated by use of an external-cavity configuration containing a Co2+: ZnS crystal as a saturable absorber. Energies of as much as 60μJ in pulses of durations as short as 3.5 ns (FWHM), corresponding to a peak power of >10kW, have been generated, and the maximum slope efficiency with respect to the absorbed pump power was 13%. Using a bulk diffraction grating in the Littrow configuration to provide wavelength-selective feedback, we tuned the passively Q -switched fiber laser over 31 nm from 1532 to 1563 nm. The prospects for further improvement in performance are discussed.

© 2002 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3600) Lasers and laser optics : Lasers, tunable

Citation
M. Laroche, A. M. Chardon, J. Nilsson, D. P. Shepherd, W. A. Clarkson, S. Girard, and R. Moncorgé, "Compact diode-pumped passively Q-switched tunable Er-Yb double-clad fiber laser," Opt. Lett. 27, 1980-1982 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-22-1980


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