Third order nonlinearities in Ge-As-Se-based glasses for telecommunications applications
Third order nonlinearities in Ge-As-Se-based glasses for telecommunications applications
复制标题
DOI：
10.1063/1.1805182
复制
发表时间：
2004-12-01
影响因子：
3.2
通讯作者：
Shurgalin, M
中科院分区：
文献类型：
--
作者：
Gopinath, JT;Soljacic, M;Shurgalin, M
研究了Ge-As-Se基玻璃的三阶光学非线性。这种玻璃具有较高的熔化温度和玻璃化转变温度，有可能与传统的复合氧化物玻璃集成成高度非线性、高折射率对比度的纤维。我们利用z扫描和飞秒泵浦探测技术测量了玻璃在通信波长的非线性折射率和双光子吸收系数。在Ge_(35)As_(15)Se_(50)的玻璃化转变温度为380℃的情况下，在1540 nm处测得高达900倍的非线性度。(C)2004年美国物理研究所。
We have studied the third order optical nonlinearities of Ge-As-Se-based glasses. The glasses have high melting and glass transition temperatures that offer the potential for integration with traditional compound oxide glasses into highly nonlinear, high-index-contrast fibers. We used z-scan and femtosecond pump-probe techniques to measure the nonlinear refractive index and two-photon absorption coefficient of the glasses at telecommunication wavelengths. Nonlinearities as high as similar to900x that of silica were measured at 1540 nm in Ge35As15Se50 with a glass transition temperature of 380 degreesC. (C) 2004 American Institute of Physics.