New materials for broadband optical amplifiers

Yasutake Ohishi; Takenobu Suzuki

doi:10.1117/12.572636

25 October 2004 New materials for broadband optical amplifiers

Yasutake Ohishi, Takenobu Suzuki

Proceedings Volume 5595, Active and Passive Optical Components for WDM Communications IV; (2004) https://doi.org/10.1117/12.572636
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States

Abstract

An emission, which covers the spectral range from the O to L-band, was observed from a Ni²⁺-doped zinc-alumino-silicate glass at room temperature. The emission lifetime was about 440 msec at 5 K and decreased with an increase temperature to 240 msec at 300 K. The emission band was identified as the downward d-d ³T_2g(³F)→³A_2g(³F) transition of octahedral Ni²⁺ ions. It was confirmed from X-ray diffraction analyses and transmission electron microscope observations that ZnAl₂O₄ spinel nano-crystals containing octahedral Ni²⁺ ions acted as emission centers. It is expected that the Ni²⁺-doped glass has a potential for a broadband amplification medium.

Citation Download Citation

Yasutake Ohishi and Takenobu Suzuki "New materials for broadband optical amplifiers", Proc. SPIE 5595, Active and Passive Optical Components for WDM Communications IV, (25 October 2004); https://doi.org/10.1117/12.572636

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