V. Jeřábek,1 D. Mareš,1 J. Šmejcký,1 J. Voves,1 J. Cajzl,2 P. Nekvindová,2 San-Liang Lee3
1Czech Technical Univ. in Prague (Czech Republic) 2Univ. of Chemistry and Technology Prague (Czech Republic) 3National Taiwan Univ. of Science and Technology (Taiwan)
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Our work presents research of the optical Ge-Si glass composition doped with Er3+, Yb3+ ions and Bi optically active centers (BACs), which are useful for optically amplifiers for a double C- and U-band. The luminescence response in the 1500 – 1700 nm range was tested with various types of glass with different content of modifier and activators in the 1500 – 1700 nm range. The maxima of the luminescence intensity and the spectral full width were determined by modified reflex spectrum method measurement. The prepared Ge-Si glass doped with Er3+ ions and BACs exhibited strong and balanced emission in the 1520 – 1680 nm range after pumping at 1480 nm. The specific balanced optical differential gain of up to 0.2 dB/cm in the C-band and simultaneously 0.2 dB/cm in the U-band was measured. The measured results prove that the investigated germano-silicate glasses doped with Er3+ and Bi ions are promising for optical amplifiers working in the optical C- and U-bands.
V. Jeřábek,D. Mareš,J. Šmejcký,J. Voves,J. Cajzl,P. Nekvindová, andSan-Liang Lee
"Active optic glass for broad-band amplification by erbium-bismuth activators", Proc. SPIE 12575, Integrated Optics: Design, Devices, Systems and Applications VII, 125750F (31 May 2023); https://doi.org/10.1117/12.2664952
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V. Jeřábek, D. Mareš, J. Šmejcký, J. Voves, J. Cajzl, P. Nekvindová, San-Liang Lee, "Active optic glass for broad-band amplification by erbium-bismuth activators," Proc. SPIE 12575, Integrated Optics: Design, Devices, Systems and Applications VII, 125750F (31 May 2023); https://doi.org/10.1117/12.2664952