Er3+-doped BaY2F8 crystal waveguides for broadband optical amplification at 1.5 mu m

Year: 2007

Authors: Toccafondo V., Arismar Cerqueira S. Jr, Faralli S., Sani E., Toncelli A., Tonelli M., Di Pasquale F.

Autors Affiliation: Scuola Superiore Sant’Anna, 56124 Pisa, Italy,
NEST-CNR Physics Department, University of Pisa, Largo Bruno Pontecorvo 3, 56127 Pisa, Italy

Abstract: Integrated waveguide amplifiers based on high concentration Er3+ doped BaY2F8 crystals are numerically studied by combining a full-vectorial finite element based modal analysis and propagation-rate equations. Using realistic input data, such as the absorption/emission cross sections and Er level lifetimes measured on grown crystal samples, we investigate the amplifier performance by optimizing the total Er concentration. We predict optimum gain coefficient up to 5 dB/cm and broad amplification bandwidth exceeding 80 nm with 1480 nm pumping. (c) 2007 American Institute of Physics.

Journal/Review: JOURNAL OF APPLIED PHYSICS

Volume: 101 (2)      Pages from: 023104-1  to: 023104-6

KeyWords: Bandwidth; Crystals; Erbium; Finite element method; Modal analysis; Optical waveguides, Amplification bandwidth; Propagation-rate equations, Light amplifiers
DOI: 10.1063/1.2404327

Citations: 7
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