CAREER: Enabling Technologies for Beyond 1 Tb/s per Wavelength Optical Transport

职业：实现每波长光传输超过 1 Tb/s 的技术

• 批准号: 0952711
• 负责人: Ivan Djordjevic
• 金额: $ 39.95万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0952711&HistoricalAwards=false
• 关键词: CAREER; Enabling; Technologies; Beyond; Tb

Today's photonic infrastructure, whose foundations were established several decades ago, gradually extends from global backbone to access networks and beyond. Recent studies indicate that each household in North America should be connected by at least 100 Mb/s, which cannot be accommodated by the last century's technology. The 100 Gb/s Ethernet is currently under standardization, and according to industry experts 1 Tb/s Ethernet should be standardized by the year 2012-2013. Migrating to higher transmission rates comes along with certain challenges such as degradation in the signal quality due to different linear and nonlinear channel impairments and increased installation costs. The limitations of photonics-enabled networks also result from the heterogeneity of the infrastructure and consequential bottlenecks at different boundaries and interfaces. This multidisciplinary research grant studies different approaches to overcome the limitations of heterogeneous optical networks and enable serial 1 Tb/s optical transport, while employing the components operating at lower speeds. In this approach, modulation, coding and multiplexing are performed in a unified fashion so that, effectively, the transmission, signal processing, detection and decoding are done at much lower symbol rates. At these lower rates, dealing with nonlinear and linear effects is manageable while the aggregate data rate is maintained at 1 Tb/s and above. The primary research objectives of this grant can be summarized as follows: (i) development of different coded modulation schemes, employing both single-carrier and multicarrier, to enable 1 Tb/s per wavelength optical transport and for simultaneous mitigation of channel impairments over various types of optical links; (ii) hardware FPGA/ASIC implementation of coded modulation schemes; and (iii) validation of the proposed methodology through proof-of-concept implementation studies.

今天的光子基础架构是几十年前建立的，其基础逐渐从全球骨干延伸到访问网络及以后。最近的研究表明，北美的每个家庭应至少通过100 MB/s连接，上世纪的技术无法容纳。 100 GB/S以太网目前处于标准化状态，根据行业专家的说法，1 TB/S以太网应在2012 - 2013年之前进行标准化。迁移到更高的传输速率带来了某些挑战，例如由于不同的线性和非线性通道障碍以及安装成本增加而导致信号质量下降。支持光子学网络的局限性也是由于基础架构的异质性以及在不同边界和接口处的瓶颈的异质性。 这项多学科研究赠款研究了不同的方法，以克服异质光网络的局限性并实现串行1 TB/S光学传输，同时采用以较低速度运行的组件。在这种方法中，调制，编码和多路复用是以统一的方式进行的，因此有效地，以较低的符号速率进行了传输，信号处理，检测和解码。在这些较低的速率下，处理非线性和线性效应是可以管理的，而总数据速率保持在1 tb/s及以上。该赠款的主要研究目标可以总结如下：（i）使用单载波和多载波的不同编码调制方案的开发，以使每个波长光学传输1 TB/S能够同时缓解各种光学链接的通道障碍； （ii）编码调制方案的硬件FPGA/ASIC实现； （iii）通过概念验证实施研究验证拟议的方法。