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Optics Letters

Optics Letters


  • Vol. 23, Iss. 5 — Mar. 1, 1998
  • pp: 373–375

Analysis of the effect of numerical aperture on Pr:ZBLAN upconversion fiber lasers

Yuxing Zhao and Simon Fleming  »View Author Affiliations

Optics Letters, Vol. 23, Issue 5, pp. 373-375 (1998)

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Theoretical analyses show that the use of high-numerical-aperture (NA) fibers can significantly increase the conversion efficiency of a blue Pr3+ -doped fluoride fiber upconversion laser and reduce the pump-power threshold. A record high efficiency of ~14% and a low 1017-nm threshold of ~30 mW were achieved experimentally with a fiber with a NA of ~0.39.

© 1998 Optical Society of America

OCIS Codes
(110.1220) Imaging systems : Apertures
(140.3510) Lasers and laser optics : Lasers, fiber
(190.7220) Nonlinear optics : Upconversion

Yuxing Zhao and Simon Fleming, "Analysis of the effect of numerical aperture on Pr:ZBLAN upconversion fiber lasers," Opt. Lett. 23, 373-375 (1998)

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