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Proceedings Paper

Double line neodymium doped GeO2-PbO waveguide amplifier for the second telecom window
Author(s): Niklaus U. Wetter; Diego S. da Silva; Luciana R. P. Kassab; Wagner De Rossi
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Paper Abstract

We report the production of active double waveguides in germanate glasses, GeO2-PbO doped with Nd3+, by direct femtosecond laser writing. The glasses were produced using the melt-quenching technique and the active waveguides were written using 30 fs laser pulses at 800 nm with different parameters of writing speeds and pulse energies depending on the rare earth elements used for doping. The photo-induced refractive index change was 5.2x10-3. The Nd doped sample exhibited a relative gain of 3.6 dB/cm for 1.6 mW of 805 nm pump power. The results obtained in present work demonstrate that Nd3+ doped GeO2-PbO glasses are promising materials for the fabrication of integrated amplifiers, lossless components and lasers based on germanate glasses.

Paper Details

Date Published: 3 March 2020
PDF: 7 pages
Proc. SPIE 11276, Optical Components and Materials XVII, 112760M (3 March 2020); doi: 10.1117/12.2544291
Show Author Affiliations
Niklaus U. Wetter, Cidade Univ. (Brazil)
Diego S. da Silva, Cidade Univ. (Brazil)
Luciana R. P. Kassab, Faculdade de Tecnologia de São Paulo (Brazil)
Wagner De Rossi, Cidade Univ. (Brazil)


Published in SPIE Proceedings Vol. 11276:
Optical Components and Materials XVII
Shibin Jiang; Michel J. F. Digonnet, Editor(s)

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