论文标题
etpathfinder:干涉重力波检测器的低温测试床
ETpathfinder: a cryogenic testbed for interferometric gravitational-wave detectors
论文作者
论文摘要
与当前的晚期探测器相比,引力波观测值的第三代,例如爱因斯坦望远镜(ET)和宇宙资源管理器(CE),旨在提高敏感性至少10倍的敏感性。为了告知第三代探测器的设计并开发和合格其子系统,需要专门的测试设施。 EtPathfinder原型使用完整的干涉仪配置,并旨在在与ET的类似环境中提供高灵敏度设施。除了1550 nm和硅测试质量的干涉法外,Etpathfinder还将重点关注2090 nm的低温技术,激光器和光学元件和高级量子噪声还原方案。本文分析了基础噪声贡献,并将它们结合成两种最初靶向配置的完整噪声预算:1)以1550 nm激光光和18 k的温度和2)在2090 nm波长和温度为123 k的温度下运行。
The third-generation of gravitational wave observatories, such as the Einstein Telescope (ET) and Cosmic Explorer (CE), aim for an improvement in sensitivity of at least a factor of ten over a wide frequency range compared to the current advanced detectors. In order to inform the design of the third-generation detectors and to develop and qualify their subsystems, dedicated test facilities are required. ETpathfinder prototype uses full interferometer configurations and aims to provide a high sensitivity facility in a similar environment as ET. Along with the interferometry at 1550 nm and silicon test masses, ETpathfinder will focus on cryogenic technologies, lasers and optics at 2090 nm and advanced quantum-noise reduction schemes. This paper analyses the underpinning noise contributions and combines them into full noise budgets of the two initially targeted configurations: 1) operating with 1550 nm laser light and at a temperature of 18 K and 2) operating at 2090 nm wavelength and a temperature of 123 K.