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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 11 — May. 21, 2012
  • pp: 12205–12211

Superbroadband near-infrared emission and energy transfer in Pr3+-Er3+ codoped fluorotellurite glasses

Bo Zhou, Lili Tao, Yuen H. Tsang, Wei Jin, and Edwin Yue-Bun Pun  »View Author Affiliations

Optics Express, Vol. 20, Issue 11, pp. 12205-12211 (2012)

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We report the first demonstration of superbroadband emission extending from 1.30 to 1.68 μm in praseodymium(Pr3+)-erbium(Er3+) codoped fluorotellurite glasses under 488 nm excitation. This superbroad near-infrared emission is contributed by the Pr3+: 1D21G4 and Er3+: 4I13/24I15/2 transitions which lead to emissions located at 1.48 and 1.53 μm, respectively. The quenching of the Pr3+ emission resulted from the cross relaxation [1D2, 3H4]→[1G4, 3F3,4] was effectively compensated by the codoping of Er3+. The results suggest that, other than the heavy-metal and transition-metal elements of active bismuth (Bi), nickel (Ni), chromium (Cr), etc., Pr3+-Er3+ codoped system is a promising alternative for the broadband near-infrared emission covering the expanded low-loss window.

© 2012 OSA

OCIS Codes
(160.5690) Materials : Rare-earth-doped materials
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence
(230.2285) Optical devices : Fiber devices and optical amplifiers

ToC Category:

Original Manuscript: December 9, 2011
Revised Manuscript: March 23, 2012
Manuscript Accepted: March 29, 2012
Published: May 14, 2012

Bo Zhou, Lili Tao, Yuen H. Tsang, Wei Jin, and Edwin Yue-Bun Pun, "Superbroadband near-infrared emission and energy transfer in Pr3+-Er3+ codoped fluorotellurite glasses," Opt. Express 20, 12205-12211 (2012)

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