Development of high power photoactive Erbium and Erbium-Ytterbium doped fibers for ultra-fast satellite telecommunications

这个为期三年的项目的主要目标是延长电信卫星中用于 100 Gbps 吞吐量的掺铒/掺镱光纤放大器 (EDFA/YDFA) 的使用寿命和性能。拟议的研究分为两种互补的方法：一种旨在实施基于光漂白的光学再生过程，以恢复暴露于伽马辐射的 EDFA/YDFA 中的光学增益，而第二种方法是使用热电 (TE) 涂层来回收操作过程中使用的一些能量，以消散过多的热量并将其部分转化为电能。我们的活动将与蒙特利尔地区的两家公司合作进行：MPB Technologies（为空间应用设计和制造紧凑型设备和仪器）和 Pi-SOL Technologies（开发用于能量转换的热电 Bi2Te3 和 Sb2Te3 纳米材料）。两位学术合作伙伴将参与其中：Federico Rosei 教授（INRS）将进行高级表征并开发高效的 TE 涂层以及光漂白过程的参数研究，以更好地了解激光/物质和辐射/物质相互作用；Cornelia Chilian 博士（SLOWPOKE 实验室，蒙特利尔理工学院）将负责辐照实验。我们的研究活动包括使用各种密封伽马源和 20 kW 中子反应堆，以 100 krad/年的低剂量率重现太空条件。我们的最终目标是开发有效的解决方案和/或缓解策略来模拟恶劣环境，这些解决方案和/或缓解策略符合我们工业合作伙伴的可行性参数，可直接在卫星和航天器中实施。

The main objective of this three-year project is to extend the operation lifetime and performance of Erbium/Ytterbium-Doped Fibre Amplifiers (EDFA/YDFAs) used for 100 Gbps throughput in telecommunication satellites. The proposed research is divided into two complementary approaches: one aiming to implement an optical regeneration process based on photo-bleaching to recover optical gain in EDFA/YDFAs exposed to gamma radiations, while the second is to retrieve some of the energy used during their operation using thermo-electric (TE) coating layers for dissipating excessive heating and partially convert it into electricity. Our activities will be conducted in partnership with two companies from the Montréal area: MPB Technologies, which designs and manufactures compact equipment and instruments for space applications, and Pi-SOL Technologies, which develops thermoelectric Bi2Te3 and Sb2Te3 nanomaterials for energy conversion. Two academic partners will be involved: Prof. Federico Rosei (INRS) who will perform advanced characterization and develop efficient TE coating layers as well as the parametric investigation of the photo-bleaching process to better understand laser/matter and radiation/matter interactions, and Dr. Cornelia Chilian (SLOWPOKE laboratory, Polytechnique Montréal), who is in charge of irradiation experiments will be performed. Our research activities include the use of various sealed gamma sources and a 20 kW neutron reactor at low doses rate of 100 krad/year to reproduce space conditions. Our ultimate goal is to develop efficient solutions and/or mitigation strategies to simulate harsh environments, which enter within the feasibility parameters of our industrial partners for direct implementation in satellites and space crafts.