Frequency Characterization of the Nonlinear Refractive Index in Optical Fiber
Frequency Characterization of the Nonlinear Refractive Index in Optical Fiber
复制标题
光纤非线性折射率的频率特性
DOI：
10.1080/014680399244776
复制
发表时间：
1999
影响因子：
1.7
通讯作者：
A. Fellegara
中科院分区：
文献类型：
--
作者：
A. Melloni;M. Martinelli;A. Fellegara
在理论和实验基础上讨论了克尔和电致伸缩对光纤中强度相关的非线性折射率的贡献。特别关注电致伸缩的贡献，在特定条件下，共振会增强电致伸缩的贡献。针对标准单模光纤和色散位移光纤，计算、测量和讨论了电致伸缩效应的谐振行为。还报告了实验结果。测量是通过一种基于交叉相位调制效应的简单有效的技术进行的，该技术还允许人们评估任何比特率下的非线性折射率。电致伸缩对总非线性折射率的贡献为 20%，但在谐振区域中与克尔效应相当。
The Kerr and the electrostrictive contributions to the intensity-dependent nonlinear refractive index in optical fibers are discussed on both theoretical and experimental bases. Particular attention is devoted to the electrostrictive contribution that under particular conditions is enhanced by resonances. The resonant behavior of the electrostrictive effect is calculated, measured, and discussed for standard single-mode fibers and dispersion shifted fibers. Experimental results are also reported. Measure ments have been carried out with a simple and effective technique based on the cross-phase modulation effect that also allows one to evaluate the nonlinear refractive index at any bit rate. Electrostriction contributes 20 % to the total nonlinear refractive index but in the resonant regime becomes comparable to the Kerr effect.