All-Optical Signal Processes Enhanced by Multi-Mode Nonlinearities

多模非线性增强的全光信号处理

• 批准号: 1947284
• 金额: --
• 依托单位: University of Southampton
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1947284
• 关键词: Optical; Signal; Processes; Enhanced; Multi

Optical communication networks are undergoing a major transformation, accommodating multi- terabit per second communication traffic, using fast and low-latency solutions with even more individual wavelength carriers, all the while improving energy efficiency. At the same time, optical networks approach saturation, and novel transmission techniques that will satisfy the demand for an ever-increasing data traffic are actively being explored by research groups worldwide. In this transforming environment, there is an urgent need for the development of novel optical amplifiers that will exhibit substantially broader bandwidth (and data capacity) than the widely-adopted erbium doped fibre amplifier with fixed bandwidth.Mode-division multiplexing has been proposed and studied as a means of supporting multiple modal channels per wavelength on a few-mode fibre. Using the basic principles of mode-division multiplexing, in this PhD project, the different modes of few-mode fibres are being utilised as a means of providing broadband optical amplification and wavelength conversion through parametric four-wave mixing that exploit third-order nonlinear optical effects in the fibre. Relative to single-mode systems, this approach offers an additional degree of freedom in the engineering of the four-wave mixing system, which originates from tailoring the propagation characteristics of the different fibre modes. This highly experimental PhD project studies the fibre geometries and experimental configurations that will allow the onset of parametric effects over a wide wavelength range. The project starts with a comparative study between intra- and inter-modal four wave mixing. It then focuses on polarisation effects and studies the polarisation dependence of the nonlinear processes in question. Furthermore, the dispersion characteristics of few-mode fibres are exploited in order to either observe broadband wavelength conversion or conversely, very localised parametric gain in the wavelengths of interest.

光学通信网络正在进行重大的转换，使用具有更多单个波长载体的快速和低延迟解决方案来适应每秒通信流量的多样性通信流量，同时又提高了能源效率。同时，光网络接近饱和度以及满足对数据流量不断增长的需求的新型传输技术正在全球研究小组积极探索。在这个转变的环境中，与广泛的带宽掺杂的掺杂纤维放大器相比，迫切需要开发新型的光学放大器（和数据容量），具有固定带宽的掺杂纤维放大器。Mode-Division多路复用已被提出并作为支持多模态通道的一种手段，并研究了多型模型通道的手段。在此博士学位项目中，使用模式分区多路复用的基本原理，几种模式的不同模式被用作通过参数四波混合提供宽带光学扩增和波长转换的一种手段，从而利用了光纤中的三阶非线性效应。相对于单模系统，这种方法在四波混合系统的工程中提供了额外的自由度，该系统源自定制不同纤维模式的传播特性。这个高度实验性的博士学位项目研究了纤维几何形状和实验构型，这些构型将允许在宽波长范围内开始参数效应。该项目始于模式间和模式间四波混合之间的比较研究。然后，它专注于极化效应，并研究所讨论的非线性过程的极化依赖性。此外，利用了几种模式纤维的色散特性，以观察宽带波长转换，或者相反，在感兴趣的波长中，非常局部的参数增益。

项目成果

Polarization Insensitive Wavelength Conversion in a Few Mode Fibre

少模光纤中的偏振不敏感波长转换

• DOI: 10.1109/ecoc.2017.8346212
• 发表时间: 2017
• 作者: Parmigiani P

Channel Selective Wavelength Conversion by Means of Inter Modal Four Wave Mixing

通过模间四波混频进行通道选择性波长转换

• DOI: 10.1364/ofc.2019.w4f.4
• 发表时间: 2019
• 作者: Anjum O

Selective wavelength conversion in a few-mode fiber.

少模光纤中的选择性波长转换。

• DOI: 10.1364/oe.27.024072
• 发表时间: 2019
• 期刊: Optics express
• 影响因子: 3.8
• 作者: Anjum OF

Bandwidth enhancement of inter-modal four wave mixing Bragg scattering by means of dispersion engineering

• DOI: 10.1063/1.5048495
• 发表时间: 2019-02-01
• 期刊: APL PHOTONICS
• 影响因子: 5.6
• 作者: Anjum, Omar F.;Horak, Peter;Parmigiani, Francesca
• 通讯作者: Parmigiani, Francesca

Polarization-Insensitive Four-Wave-Mixing-Based Wavelength Conversion in Few-Mode Optical Fibers

• DOI: 10.1109/jlt.2018.2834148
• 发表时间: 2018-09
• 期刊: Journal of Lightwave Technology
• 影响因子: 4.7
• 作者: Omar F. Anjum;M. Guasoni;P. Horák;Yongmin Jung;P. Petropoulos;D. Richardson;F. Parmigiani