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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 2 — Jan. 23, 2006
  • pp: 678–685

Efficient 2.96 μm dysprosium-doped fluoride fibre laser pumped with a Nd:YAG laser operating at 1.3 μm

Yuen H. Tsang, Atalla E. El-Taher, Terence A. King, and Stuart D. Jackson  »View Author Affiliations

Optics Express, Vol. 14, Issue 2, pp. 678-685 (2006)

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A quasi-continuous wave Dy3+-doped ZBLAN fibre laser pumped by a ~1.3 μm Nd:YAG laser and operating at 2.96 μm with an emission linewidth of ~14 nm (FWHM) has been demonstrated. The 6H15/26H9/2 , 6F11/2 absorption band of Dy3+-doped ZBLAN centred at 1.3 μm has been used to pump the 6H13/26H15/2 laser transition. For a 60 cm fibre length, a threshold of 0.5 W and a slope efficiency of ~20% with respect to the absorbed pump power was measured. The experimental slope efficiency was ~45% of the Stokes efficiency limit. The high efficiency relates to low pump ESA losses and an optimised output coupling as compared with previous demonstrations.

© 2006 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3510) Lasers and laser optics : Lasers, fiber

Yuen H. Tsang, Atalla E. El-Taher, Terence A. King, and Stuart D. Jackson, "Efficient 2.96 µm dysprosium-doped fluoride fibre laser pumped with a Nd:YAG laser operating at 1.3 µm," Opt. Express 14, 678-685 (2006)

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