Optical front-end for decoding advanced modulation formats

用于解码高级调制格式的光学前端

• 批准号: 396980-2010
• 负责人: Lacroix, Suzanne
• 金额: $ 7.25万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=467897
• 关键词: Optical; front; end; decoding; advanced

The project consists in developing new fibre-based tools for use in telecommunications, biomedical, and quantum applications. All-fibre components with typically 2 inputs and 3 or 4 outputs can replace components (such as the so-called 90° optical hybrids) currently on the market. The commercially available hybrids are based on costly alternative technologies (micro-optics) with relatively high fibre-to-fibre losses. All-fibre components mitigate these problems as they are relatively low-cost and inherently compatible with optical fibre networks, such as telecommunication and sensing networks, and remote imaging systems, e.g. in medical endoscopy. The proposed components provide new functionalities in these domains, thanks to their capacity to make unambiguous phase measurements. In telecommunication networks, they can improve the signal-to-noise ratio and enable the use of more advanced protocols. For imaging systems, the phase information provided by the devices translates into depth information for 3D imaging. These components also have applications in quantum information, as they allow the implementation of advanced quantum key distribution protocols and measurements at the quantum limit.

该项目包括开发用于电信，生物医学和量子应用的新型光纤工具。通常具有2个输入和3个或4个输出的全光纤组件可以取代目前市场上的组件（例如所谓的90 °光学混合）。商业上可获得的混合器基于成本高的替代技术（微光学），具有相对较高的光纤到光纤损耗。全光纤组件缓解了这些问题，因为它们成本相对较低，并且与光纤网络（例如电信和传感网络）和远程成像系统（例如在医疗内窥镜检查中）固有地兼容。所提出的组件在这些领域提供了新的功能，由于他们的能力，使明确的相位测量。在电信网络中，它们可以提高信噪比，并允许使用更先进的协议。对于成像系统，由设备提供的相位信息转化为用于3D成像的深度信息。这些组件在量子信息中也有应用，因为它们允许在量子极限下实现高级量子密钥分发协议和测量。