Large Kerr effect in bulk Se-based chalcogenide glasses.
Large Kerr effect in bulk Se-based chalcogenide glasses.
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DOI：
10.1364/ol.25.000254
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发表时间：
2000-02
期刊：
影响因子：
3.6
通讯作者：
Gadi Lenz;J. Zimmermann;T. Katsufuji;M. Lines;H. Y. Hwang;S. Spalter;R. Slusher;S. Cheong
中科院分区：
文献类型：
--
作者：
Gadi Lenz;J. Zimmermann;T. Katsufuji;M. Lines;H. Y. Hwang;S. Spalter;R. Slusher;S. Cheong
高速光通信需要超快的全光处理和交换能力。克尔非线性是一种超快的光学非线性，常被用作基本的开关机制。一个实用的，可以切换到~1-pJ能量的小型装置需要一个大的克尔效应和最小的损失（线性和非线性）。我们从理论上和实验上研究了一些硒基硫系玻璃。我们已经发现了许多具有比二氧化硅大数百倍的克尔非线性的化合物，使它们成为超快全光器件的优秀候选者。
High-speed optical communication requires ultrafast all-optical processing and switching capabilities. The Kerr nonlinearity, an ultrafast optical nonlinearity, is often used as the basic switching mechanism. A practical, small device that can be switched with ~1-pJ energies requires a large Kerr effect with minimal losses (both linear and nonlinear). We have investigated theoretically and experimentally a number of Se-based chalcogenide glasses. We have found a number of compounds with a Kerr nonlinearity hundreds of times larger than silica, making them excellent candidates for ultrafast all-optical devices.