Measurement of higher-order mode attenuation in single-mode fibers: effective cutoff wavelength.
Measurement of higher-order mode attenuation in single-mode fibers: effective cutoff wavelength.
复制标题
单模光纤中高阶模衰减的测量：有效截止波长。
作者：
K. V. van Leeuwen;H. T. Nijnuis
本文提出了一种测定单模光纤中LP（11）模随波长变化的衰减系数的方法。需要了解该系数的大小，例如，用于光纤通信系统中模式噪声的定量预测。LP（11）模的有效截止波长可以明确地定义为衰减系数等于特定值的波长。
A technique for the determination of the wavelength-dependent attenuation coefficient of the LP(11) mode in sing]emode fibers is presented. Knowledge of the magnitude of this coefficient is required, e.g., for the quantitative prediction of modal noise in an optical-fiber communication system. An effective cutoff wavelength of the LP(11) mode can be unambiguously defined as the wavelength at which the attenuation coefficient equals a specified value.