Pr3+-doped phosphate glasses for fiber amplifiers operating at 1.38-1.53 μm of the fifth optical telecommunication window

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Original languageEnglish
Pages (from-to)1203-1208
Journal / PublicationOptical Materials
Issue number7
Online published21 Mar 2014
Publication statusPublished - May 2014


Effective near-infrared emission covering the fifth optical telecommunication window (1380-1525 nm) has been observed in Pr 3+-doped phosphate (LCBALP) glasses. Judd-Ofelt parameters Ω2 (9.17 × 10-20 cm2), Ω4 (16.50 × 10-20 cm2) and Ω6 (2.41 × 10-20 cm2) indicate a high inversion asymmetrical and strong covalent environment in the optical glasses. The effective bandwidth (Δλeff) of the corresponding 1D21G4 transition emission is obtained to be 148 nm, and the maximum stimulated emission cross-section (σem) at 1467.5 nm is derived to be 1.29 × 10-20 cm2. The quantum efficiency of Pr 3+:1D2 level is identified to be 85.36%. The broad effective bandwidth and the large emission cross-section profile indicate that Pr3+-doped LCBALP glass fiber is promising in the realization of effective broadband amplification, especially at E- and S-band. As an expectation, the mature oxide glasses with Pr3+-doping, such as borate, phosphate and silicate glasses, are expected to be attractive candidates for broadband signal amplifiers operating at the fifth optical telecommunication window. © 2014 Elsevier B.V. All rights reserved.

Research Area(s)

  • Broadband signal amplifiers, Fifth optical telecommunication window, Praseodymium ion doping