SBIR Phase I: All-Optical Method to Detect and Diagnose Optical Faults in Advanced Optical Networks

这个小型企业创新研究(SBIR)第一阶段项目将展示一项突破性的、使光信号传输监控技术成为可能的技术。必须持续监控光纤网络，以确保可靠的数据传输。先进的网络正在向更密集的波长间隔和光节点发展。这一趋势取代了当前的光信号质量监测技术。将演示一种集成的全光方法，该方法不仅可以监测先进网络中的光故障，还可以进行在线诊断。第一阶段将展示一种新的测量原理的可行性，用于监测与光信号本身相同波长的光噪声分量。这种能力是在包括偏振模色散(PMD)存在的真实网络环境中设计的，这种现象阻碍了其他通道内噪声检测方法的发展。该项目将包括开发光学噪声和偏振模色散行为的数学模型，组装网络试验台，以及实验数据。结果将达到商业上接受的灵敏度和重复性标准。这种监控技术使网络设备能够开发和部署先进的网络。先进的密集波分复用(DWDM)系统使用更高的信道密度和光路由，正在变得可用。这些系统对运营商非常有吸引力，因为它们在初始资本支出和持续运营费用上都节省了50%以上的成本。这为电信运营商和最终所有数据通信消费者节省了巨大的成本

This Small Business Innovation Research (SBIR) Phase I project will demonstrate a breakthrough, enabling technology for monitoring of optical signal transmission. Optical networks must be continuously supervised to ensure reliable data delivery. Advanced networks are evolving towards denser wavelength spacing and optical nodes. This trend obsoletes current optical signal quality monitoring techniques. An integrated all-optical method that not only monitors but also performs on-line diagnosis of optical faults in advanced networks will be demonstrated. Phase I will show the feasibility of a new measurement principle for monitoring optical noise components at the same wavelength as the optical signal itself. This capability is designed or a real network environment which includes the presence of polarization mode dispersion (PMD), a phenomena which has frustrated other approaches to in-channel noise detection. The project will include development of mathematical models of optical noise and PMD behavior, assembly of a network testbed, and experimental data. Results will meet commercially accepted standards of sensitivity and repeatability. This monitoring technology enables network equipment to develop and deploy advanced networks. Advanced dense wavelength division multiplexing (DWDM) systems, which employ higher channel density and optical routing, are becoming available. These systems are very attractive to carriers because they offer cost savings of greater than 50% on both initial capital expenditure and on-going operating expense. This represents an enormous cost savings for telecommunications carriers and ultimately all data communications consumers