Lasing at 1065 nm in bulk Nd3+-doped telluride-tungstate glass


Kalaycioglu H. , Cankaya H., OZEN G., OVECOGLU L., Sennaroglu A.

OPTICS COMMUNICATIONS, cilt.281, ss.6056-6060, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 281 Konu: 24
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.optcom.2008.08.053
  • Dergi Adı: OPTICS COMMUNICATIONS
  • Sayfa Sayıları: ss.6056-6060

Özet

We have achieved, for the first time to our knowledge, lasing in a new type of telluride-tungstate glass host doped with neodymium: Nd3+:(0.8)TeO2-(0.2)WO3. Lasing was obtained at 1065 nm with two samples containing 0.5 mol% and 1.0 mol% Nd2O3. During gain-switched operation, slope efficiencies of 12% and 10% were obtained with the 0.5 mol% and 1.0 mol% doped samples, respectively, at a pulse repetition rate of I kHz. Judd-Ofelt analysis was further employed to determine the emission cross section sigma(e) at 1065 nm from the absorption spectra and lifetime data. The emission cross section from the Judd-Ofelt analysis came to 3.23 +/- 0.09 x 10(-20) cm(2), in reasonable agreement with the value of 2.0 +/- 0.13 x 10(-20) cm(2) obtained from the analysis of laser threshold data. (C) 2008 Elsevier B.V. All rights reserved.