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Journal of Engineering
Volume 2013, Article ID 858341, 4 pages
http://dx.doi.org/10.1155/2013/858341
Research Article

Fabrication and Characterization of a High-Gain Yb-Er Codoped Phosphate Glass Optical Amplifier

1DISAT, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
2PhotonLab, Istituto Superiore Mario Boella, Via P. Boggio 61, 10138 Torino, Italy

Received 31 January 2013; Accepted 23 April 2013

Academic Editor: Oualid Hammi

Copyright © 2013 Gerardo Cristian Scarpignato et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We present the fabrication and characterization of a short core pumped fiber amplifier made of Yb3+-Er3+ codoped phosphate glasses. The 27 mm long amplifier provides a maximum internal gain of 10.7 dB for a signal of −30 dBm at 1535 nm with a 479 mW pump power operating at 975.6 nm. This leads to a gain of 4.0 dB/cm, which compares favorably to other recent works.