OSCILLATOR: applications of Optical SCatterIng and Light LocAlisation in Turbid Or peRiodic media

振荡器：光学散射和光定位在浑浊或周期性介质中的应用

• 批准号: RGPIN-2022-04525
• 负责人: Kashyap, Raman
• 金额: $ 3.35万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=754589
• 关键词: OSCILLATOR; applications; Optical; SCatterIng; Light

The short-term objectives of OSCILLATOR are to deliver devices to open new avenues in photonics for optical logic (OL), Quantum processing (QP), secure communications (SEC), advanced fibre lasers (AFL) and high-resolution distributed sensing with our recently developed ultra-long fibre Bragg gratings (UL-FBGs). The long-term objectives are the refine the state-of-the-art Fabulas facilities to include ultra-high precision plane-by-plane writing (PPW) using fs lasers to deliver through the coating written optical fibre filters, to develop a new sensor system for real time displays for robotics and surgical catheter guidance/tracking and neural networks based of interconnected random lasers for studying nonlinear phenomenon, artificial intelligence (AI) and a new generation of glass ceramics and optical fibres for laser cooling and heat mitigation. These advances would make a huge impact on the above-mentioned areas by offering outstanding device performance, as yet unattained by other means. Successful outcomes will advance Canada's technological competitive advantage. Fabricating ultra-¬high¬ quality UL¬FBGs has remained a challenge, which will be addressed in the course of the current proposal, requiring the control of phase to less than one thousandth of a wavelength of light over hundreds of mm, further complicated by the use of fs lasers to write through the coating which severely reduces the quality of the FBG. To mitigate these problems, we need to refine the techniques to allow replication with a high yield. Devices will be made for optical networking, point to point and satellite communications where security is of paramount importance, as well as to implement real-time ultrahigh speed optical logic operations. Pre¬programmed random FBGs have shown great promise in bend sensing and real-time display for bio¬medical use with minimally invasive surgical catheters. These FBGs are assembled into triplets for real-time catheter tracking, however, challenges remain in data processing for this application. Recent developments in my lab have shown near zero heat generation in Yb doped nano-crystalline glass ceramic samples. This on¬going work requires a focus on purification, which theory predicts will lead to cooling in these easily mouldable glasses to open applications, e.g., for sensors in space and bio photonics. Optical fibres will be made out of these materials for mitigating heat generation in high power fibre lasers through radiation balancing. Tunable random lasers were made with our new material based on the elastomer, polydimethylsiloxane (PDMS) with rare earth (RE) doped glass ceramics. Why quenching occurs in certain RE: doped glasses needs to be answered as this potentially offers wide tunability. We also permanently photosensitized PDMS with Germania and other dopants, and demonstrated fs laser simple waveguides, and opens avenues to integrate tunable photonic devices compatible with lab-on-a-chip, directly written with lasers.

振荡器的短期目标是提供器件，为光学逻辑(OL)、量子处理(QP)、安全通信(SEC)、高级光纤激光器(AFL)和使用我们最近开发的超长光纤布拉格光栅(UL-FBG)的高分辨率分布式传感开辟光子学领域的新途径。长期目标是完善最先进的Fumulas设施，包括使用飞秒激光通过涂层逐平面写入(PPW)，开发用于机器人和手术导管引导/跟踪的实时显示的新传感器系统，以及基于互联随机激光器的神经网络，用于研究非线性现象，人工智能(AI)，以及用于激光冷却和热缓解的新一代玻璃陶瓷和光纤。这些进步将通过提供卓越的设备性能对上述领域产生巨大影响，这是其他方式所无法达到的。成功的结果将提升加拿大的技术竞争优势。制造超高质量的UL-FBG仍然是一个挑战，这个问题将在当前的提案过程中得到解决，需要将相位控制在数百毫米以上的光波长的千分之一以下，使用飞秒激光穿透涂层进一步复杂化，这严重降低了FBG的质量。为了缓解这些问题，我们需要改进技术，以实现高产量的复制。将制造用于安全至关重要的光网络、点对点和卫星通信的设备，以及实施实时超高速光逻辑操作。预编程的随机FBG在弯曲传感和实时显示方面显示出巨大的潜力，用于生物医学领域的微创手术导管。这些FBG被组装成三个一组，用于实时导管跟踪，然而，这一应用的数据处理仍然存在挑战。我实验室的最新进展显示，掺Yb纳米微晶玻璃样品的发热量接近于零。这项正在进行的工作需要将重点放在净化上，理论预测，这将导致这些易于模压的玻璃中的冷却，以打开应用，例如，空间传感器和生物光子学。光纤将由这些材料制成，通过辐射平衡来减少高功率光纤激光器中的热产生。以新材料聚二甲基硅氧烷(PDMS)和稀土(RE)掺杂微晶玻璃为基础，制作了可调谐随机激光器。为什么在某些RE：掺杂玻璃中会发生猝灭，这需要回答，因为这可能提供广泛的可调性。我们还用Germania和其他掺杂剂永久地使PDMS感光，并演示了飞秒激光简单波导，并开辟了集成与芯片上实验室兼容的可调光子器件的途径，直接用激光写入。