15 February 2018 Influence of silicon nanocrystals on the performance of Yb3+/Er3+: Bi2O3-GeO2 pedestal waveguides for amplification at 1542 nm
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Abstract
This paper reports for, the first time, the influence of silicon nanocrystals on the photoluminescence and optical gain of Yb3+/Er3+ codoped Bi2O3−GeO2 waveguides for amplification at 1542 nm. Pedestal waveguides were fabricated by RF- sputtering followed by optical lithography and reactive ion etching. RF-sputtering followed by heat treatment produced silicon nanocrystals with average size of 8 nm and resulted in a photoluminescence enhancement of about 10 times for the 520 nm and 1530 nm emission bands. The resulting internal gain was 5.5 dB/cm at 1542 nm, which represents and enhancement of ∼50%, demonstrating potential for applications in integrated optics.
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Diego S. da Silva, Diego S. da Silva, Marcos I. Alayo, Marcos I. Alayo, Luciana R. P Kassab, Luciana R. P Kassab, Thiago A. A. de Assumpção, Thiago A. A. de Assumpção, Niklaus U. Wetter, Niklaus U. Wetter, Ernesto Jimenez-Villar, Ernesto Jimenez-Villar, } "Influence of silicon nanocrystals on the performance of Yb3+/Er3+: Bi2O3-GeO2 pedestal waveguides for amplification at 1542 nm", Proc. SPIE 10521, Synthesis and Photonics of Nanoscale Materials XV, 105210M (15 February 2018); doi: 10.1117/12.2291326; https://doi.org/10.1117/12.2291326
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