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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 19, Iss. 8 — Aug. 1, 2002
  • pp: 1849–1856

Static and dynamic properties of a bulk heavily doped Er:Yb:Cr:glass laser

Michael Fromager, Kamel Aı̈t-Ameur, François Sanchez, and Gilles Martel  »View Author Affiliations

JOSA B, Vol. 19, Issue 8, pp. 1849-1856 (2002)

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We have considered the output of a longitudinally pumped, heavily doped Er:Yb:Cr:phosphate glass laser. We experimentally observed that the characteristic output-versus-input curve is not linear and exhibits bistability. A theoretical approach, based on a thermal lensing effect that varies depending on whether the laser is on or off, provides an excellent description of the experimental results. In addition, we observed that the laser operates in a self-pulsing, sinusoidal, or cw regime, although the pumping is continuous such as was already observed in erbium-doped fiber lasers. This effect is attributed to the existence of ion pairs acting as saturable absorbers. Unlike for erbium-doped fibers, we demonstrate that the concentration of ion pairs cannot be deduced from the pump transmission through the amplifying medium because of the presence of ytterbium ions.

© 2002 Optical Society of America

OCIS Codes
(140.3500) Lasers and laser optics : Lasers, erbium
(140.6810) Lasers and laser optics : Thermal effects
(190.1450) Nonlinear optics : Bistability
(190.3100) Nonlinear optics : Instabilities and chaos

Michael Fromager, Kamel Aït-Ameur, François Sanchez, and Gilles Martel, "Static and dynamic properties of a bulk heavily doped Er:Yb:Cr:glass laser," J. Opt. Soc. Am. B 19, 1849-1856 (2002)

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