NASA’s LCOT (low-cost optical terminal) FSOS (free-space optical subsystem): concept, design, build, and test
NASA’s LCOT (low-cost optical terminal) FSOS (free-space optical subsystem): concept, design, build, and test
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NASA 的 LCOT（低成本光学终端）FSOS（自由空间光学子系统）：概念、设计、构建和测试
DOI：
10.1117/12.2653355
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发表时间：
2023
期刊：
影响因子：
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通讯作者：
Mark E. Wilson
中科院分区：
文献类型：
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作者：
P. Thompson;A. Caroglanian;Jeffrey Guzek;S. A. Hall;R. Lafon;Kristoffer C. Olsen;Daniel A. Paulson;H. Safavi;P. Sekulic;Oscar Ta;Mark E. Wilson
我们目前正在进行的工作，在美国宇航局的戈达德太空飞行中心（GSFC），以建立一个原型，低成本的生产，灵活配置的地面终端空间光通信的状态。为了使激光通信在未来的飞行任务中具有成本效益，应建立一个广泛的全球性的操作响应光学终端网络。几十年来，人们一直需要一种单一的模块化开放系统方法（MOSA）地面终端架构，该架构能够支持从LEO到月球距离的多个空间任务，并具有双向激光通信。LCOT设计理念的核心是自由空间光学子系统（FSOS）。LCOT/FSOS解决大多数光通信配置的主要问题是：（1）单个700 mm F/12 Nasmyth折叠Rx R-C望远镜，（2）四个独立的150 mm直径高功率全反射Tx波束指向器（XOA），（3）望远镜右舷的非相干直接检测Rx工作台（XOA），以及（4）端口侧相干（可能是量子）光通信平台（POB）。低成本光终端（LCOT）研发（R&D）原型被设计成一个通用系统，可以快速进行现场重新配置，以支持过去、现在和未来的各种激光通信任务。
We present the status of ongoing work at NASA’s Goddard Space Flight Center (GSFC) to build a prototype, low-costof- production, flexibly-configured ground terminal for space optical communication. For laser telecommunication to be cost effective for future missions, a wide-spread global network of operationally responsive optical terminals should be established. There has been a decades-old need for a single modular open systems approach (MOSA) ground terminal architecture capable of supporting multiple space missions ranging from LEO to Lunar distances with 2-way laser communications. At the heart of LCOT’s design concept is the Free-Space Optical Subsytem (FSOS). The major subassemblies of LCOT/FSOS that address most optical comms configurations are : (1) Single 700mm F/12 Nasmyth folded Rx R-C Telescope, (2) Four independent 150mm diameter high-power all-reflective Tx beam directors (XOA), (3) Non-coherent direct detection Rx bench on starboard side of telescope (SOB), and (4) Coherent (possibly Quantum) optical communications bench on port side (POB). The Low-Cost Optical Terminal (LCOT) research and development (R&D) prototype is designed to be a generalized system that can be quickly field-reconfigured to support a wide variety of laser communications missions past, present, & future.