Influence of silicon nanocrystals on the performance of Yb3+/Er3+: Bi2O3-GeO2 pedestal waveguides for amplification at 1542 nm

Diego S. da Silva; Marcos I. Alayo; Luciana R. P Kassab; Thiago A. A. de Assumpção; Niklaus U. Wetter; Ernesto Jimenez-Villar

doi:10.1117/12.2291326

15 February 2018 Influence of silicon nanocrystals on the performance of Yb³⁺/Er³⁺: Bi₂O₃-GeO₂ pedestal waveguides for amplification at 1542 nm

Diego S. da Silva, Marcos I. Alayo, Luciana R. P Kassab, Thiago A. A. de Assumpção, Niklaus U. Wetter, Ernesto Jimenez-Villar

Author Affiliations +

Proceedings Volume 10521, Synthesis and Photonics of Nanoscale Materials XV; 105210M (2018) https://doi.org/10.1117/12.2291326
Event: SPIE LASE, 2018, San Francisco, California, United States

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, Marcos I. Alayo, Luciana R. P Kassab, Thiago A. A. de Assumpção, Niklaus U. Wetter, and 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); https://doi.org/10.1117/12.2291326

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