PERSEUS: Programmable Elastic broadband information processors with controlled high precision frequency and time Reference SystEms Using all optical fiberS

PERSEUS：可编程弹性宽带信息处理器，具有受控高精度频率和时间参考系统，使用全光纤

• 批准号: 521494-2018
• 负责人: Azaña, José
• 金额: $ 12.75万
• 依托单位: Institut national de la recherche scientifique
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=694019
• 关键词: PERSEUS; Programmable; Elastic; broadband; information

Precise temporal and spectral references are essential in communication and information processing systems. A periodic train of short light pulses, repeating at a well-defined rate, provides a direct temporal reference, widely used for synchronization in optical transmission links, precise temporal sampling in photonic analog-to-digital converters (ADCs) etc. On the other hand, the Fourier spectrum of such a pulse train is a periodic optical frequency comb (OFC), which also provides an accurate spectral reference for wavelength-domain multiplexing (WDM) and de-multiplexing applications, photonics-based radio-frequency signal and arbitrary waveform generation (AWG) and processing etc. Nowadays, periodic ultra-short light-pulse trains can be routinely generated from mode-locked lasers. However, future elastic broadband communication systems will require (i) generation of high-precision and stable temporal and spectral reference signals with repetition rates (and frequency spacings) reaching the terahertz range, and (ii) full reconfigurable control of these references . These capabilities are beyond the potential of present designs. In this project, researchers from INRS and Ecole Polytechnique de Montreal will work with MPB Communications towards the development of practical and cost-effective fiber-optics technologies for generation and control of high-quality and high-speed ultra-short optical pulses (and OFCs), with fully programmable, on-demand time (and frequency) periods, fulfilling the stringent requirements in next-generation broadband communications. The project will exploit novel concepts of the powerful Talbot self-imaging effect for out-of-cavity time and frequency spacing control of fundamental (ultra-low-noise) mode-locked fiber lasers, involving the use of ground-breaking fiber Bragg grating (FBG) designs. The developed time/frequency reference units will enable realization of critical information-processing building blocks, e.g., ADCs, AWGs, WDM transmitters etc., with performance commensurate with future demands. The generated know-how and the training of highly-qualified personnel will place Canada in a leading position in broadband communication technologies and systems.

在通信和信息处理系统中，精确的时间和光谱基准是必不可少的。以明确定义的速率重复的周期性短光脉冲串提供了直接的时间参考，广泛用于光传输链路中的同步、光子模数转换器（ADC）中的精确时间采样等。另一方面，这种脉冲串的傅立叶频谱是周期性光频梳（OFC），其还为波长域复用（WDM）和解复用应用、基于光子学的射频信号和任意波形产生（AWG）和处理等提供精确的光谱参考。如今，周期性超短光脉冲序列可以常规地从锁模激光器产生。然而，未来的弹性宽带通信系统将需要（i）生成重复率（和频率间隔）达到太赫兹范围的高精度和稳定的时间和光谱参考信号，以及（ii）对这些参考的完全可重构控制。这些能力超出了现有设计的潜力。在该项目中，来自INRS和蒙特利尔理工学院的研究人员将与MPB通信公司合作，开发实用且具有成本效益的光纤技术，用于生成和控制高质量和高速的超短光脉冲（和OFC），具有完全可编程的按需时间（和频率）周期，满足下一代宽带通信的严格要求。该项目将利用强大的塔尔博特自成像效应的新概念，用于基本（超低噪声）锁模光纤激光器的腔外时间和频率间隔控制，涉及使用突破性的光纤布拉格光栅（FBG）设计。所开发的时间/频率基准单元将能够实现关键的信息处理构件，例如，ADC、AWG、WDM发射机等，其性能与未来需求相称。所产生的专门知识和高素质人员的培训将使加拿大在宽带通信技术和系统方面处于领先地位。