不同成分Ge-SiO2纤维缺陷中心形成及光敏性动力学

Bragg Gratings, Photosensitivity, and Poling in Glass Fibers and Waveguides: Applications and Fundamentals Pub Date : 1900-01-01 DOI:10.1364/bgppf.1997.jma.4

T. Tsai, E. Friebele

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引用次数: 2

摘要

据报道，Ge E′中心与Ge- sio21中的二次谐波(SHG)有关。由于Ge E′中心被称为空穴捕获中心，这表明Ge- sio2中SHG的正电荷捕获位点是Ge E′中心。然而，在后来的一项详细的热稳定性研究中，我们报告说，只有Ge E'中心的一个变体，即Ge E' 1，具有类似于SHG的热稳定性。这表明并非所有观测到的Ge E'中心都带电。

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Kinetics of defect centers formation and photosensitivity in Ge-SiO2 fibers of various compositions

It was reported that the Ge E' center is related to second harmonic generation (SHG) in Ge-SiO21. Since the Ge E' center is known as hole-trapping center, this suggests that the positive charge trapping sites for SHG in Ge-SiO2 are Ge E' centers. However, in a later, detailed thermal stability study, we reported2 that only a variant of the Ge E' center, i.e., Ge E’d1, has thermal stability similar to SHG. This suggests that not all of the observed Ge E' centers are charged.

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Bragg Gratings, Photosensitivity, and Poling in Glass Fibers and Waveguides: Applications and Fundamentals

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