High capacity coherent transport systems for elastic optical networks

用于弹性光网络的高容量相干传输系统

基本信息

批准号：
479311-2015
负责人：
Cartledge, John
金额：
$ 10.53万
依托单位：
Queen's University
依托单位国家：
加拿大
项目类别：
Strategic Projects - Group
财政年份：
2017
资助国家：
加拿大
起止时间：
2017-01-01 至 2018-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=641858
关键词：
capacity coherent transport systems elastic

项目摘要

Coherent optical fiber transport systems exploit a new paradigm in optical fiber communications. Advances in high-speed digital-to-analog converters, analog-to-digital converters, and digital signal processors have allowed substantial improvements in system performance and functionality. These systems also make possible the concept of elastic optical networks for which, unlike conventional dense wavelength division multiplexed networks, the channel carrier frequencies and bandwidths are flexible and dynamically assignable. This allows for efficient use of the available optical spectrum by assigning only the bandwidth needed by a specific modulated signal. The research represents a strategic activity between Queen's University, McGill University and Ciena that is directed at key challenges in coherent optical fiber transport systems: increasing the spectral efficiency and transmission distance of elastic long-haul networks, and increasing the flexibility and capacity of elastic metropolitan networks. The specific objectives of the research are: (i) to develop techniques for mitigating the effects of transmission impairments in elastic long-haul and metropolitan networks that offer improvements in system performance with acceptable levels of complexity, and (ii) to develop multi-dimensional coding techniques for long-haul networks that provide a finer granularity in the number of bits/symbol and that suppress the generation of signal degradations due to fiber nonlinearities. Through the training of highly skilled personnel for the Canadian information and communications sector, the research will develop innovative techniques that challenge current technological limits but are aligned with anticipated increases in signal processing capability, thereby creating competitive advantages for companies in Canada.

相干光纤传输系统开发了光纤通信的新范例。高速数模转换器、模数转换器和数字信号处理器的进步使得系统性能和功能得到了显着改进。这些系统还使弹性光网络的概念成为可能，与传统的密集波分复用网络不同，弹性光网络的信道载波频率和带宽是灵活且可动态分配的。这样可以通过仅分配特定调制信号所需的带宽来有效利用可用光谱。该研究代表了女王大学、麦吉尔大学和 Ciena 之间的一项战略活动，针对相干光纤传输系统的关键挑战：提高弹性长途网络的频谱效率和传输距离，并提高弹性城域网络的灵活性和容量网络。该研究的具体目标是：（i）开发减轻弹性长途和城域网络中传输损伤影响的技术，以可接受的复杂程度提高系统性能，以及（ii）开发多维用于长途网络的编码技术，可提供更精细的比特/符号数量，并抑制由于光纤非线性而产生的信号劣化。通过为加拿大信息和通信行业培训高技能人才，该研究将开发创新技术，挑战当前的技术极限，但与信号处理能力的预期增长相一致，从而为加拿大公司创造竞争优势。