Applications of optical fibers for communication, signal processing and acoustics

光纤网络构成了互联网和语音通信的主干。光纤传输速度从80年代的几Mb/s稳步增长到最近的Tb/s，从而实现了更快的互联网服务。传输速度和范围主要受到光纤系统中传播损伤的限制。本研究计划主要针对光纤中的线性与非线性传输损伤，以及如何减轻这些损伤，以改善其性能。我们建议发展快速电均衡器来补偿光纤传输所造成的线性和非线性损伤。还将研究在光纤链路末端引入光学反向传播模块的可能性，该模块可以在真实的时间内补偿光纤非线性损伤。该模块可以在宽频带上补偿非线性，因此，它与波分复用系统兼容。

A fiber-optic network forms a backbone of the internet and voice traffic. Fiber-optic transmission speed has steadily increased from several Mb/s in 80s to Tb/s recently, enabling faster internet services. The transmission speed and reach are mainly limited by the propagation impairments in fiber-optic systems. This research proposal focuses on the study of linear and nonlinear propagation impairmens in optical fibers and how to mitigate them so that the performance can be improved. We propose to develop fast electrical equalizers to compensate the linear and nonlinear impairments due to fiber propagation. The possibility of introducing an optical back propagation module at the end of the fiber-optic link that could compensate for fiber nonlinear impairments in real time will also be investigated. This module could compensate for nonlinearities over a wide band and therefore, it is compatible with wavelength division multiplexed systems.