论文标题
用于小型量子光源的热机械设计Spooqy-1 Cubesat
Thermo-mechanical design for a miniaturized quantum light source on board the SpooQy-1 CubeSat
论文作者
论文摘要
本文介绍了板上Spooqy-1上量子光源的热机械设计，Spooqy-1是一个3U立方体，于2019年6月17日从国际空间站部署。Spooqy-1是一个用于空间量子网络的技术演示器。车载光源生成并检测到极化的光子对，以验证其内部性能。使用自发参数下转换（SPDC）生成纠缠光子，需要严格的尺寸稳定性和温度要求。在实验室条件下，这些要求通常使用现成的实验室安装座和对齐机制来满足。但是，当面对诸如火箭发射过程中的振动或因波动照明条件而导致的温度变化之类的恶劣环境时，需要定制的热机械解决方案。在这项工作中，讨论了等静力有效载荷安装座的开发和轨道演示。这种安装方法可以在资源受限的立方体平台上使用量子仪器提供未来的空间任务，具有有限的热控制功能。
This paper presents the thermo-mechanical design of the quantum light source on board SpooQy-1, a 3U CubeSat that was deployed from the International Space Station on 17th June 2019. SpooQy-1 is a technology demonstrator for space-based quantum networks. The on-board light source generates and detects polarization-entangled photon pairs to validate its in-orbit performance. Entangled photons are generated using spontaneous parametric down-conversion (SPDC) necessitating stringent dimensional stability and temperature requirements. Under laboratory conditions these requirements are routinely met using off-the-shelf laboratory mounts and alignment mechanisms. However, when facing harsh environments such as the vibration during rocket launch or temperature changes due to fluctuating illumination conditions, custom thermo-mechanical solutions are required. In this work, the development and in-orbit demonstration of an isostatic payload mount is discussed. This mounting approach enables future space missions with quantum instruments on resource-constrained CubeSat platforms with limited thermal control capabilities.
