AI 中文总结
本文提出采用多平面光转换器（MPLC）实现量子最优空间模式解复用器（SPADE），并针对ELTs、HWO和LIFE任务设计方案，其性能优于现有方案。
AI 中文摘要
空间模式解复用器（SPADE）是一种将入射波前拆分为特定电场模式集合的器件，已被证明在包括日冕仪、波前传感和干涉（消零）光束组合器在内的众多测量问题中达到量子最优。本文展示如何采用多平面光转换器（MPLC）实现量子最优SPADE：MPLC通过依次使用多个相位板实现任意幺正变换，相位板采用液晶技术制备，可生成高质量宽带相位板；通过直写方法实现局部相位的精确控制，使MPLC具备极低背景散射。本文针对极大望远镜（ELTs）、大型空间望远镜（HWO）和LIFE任务展示了各拟议应用场景的设计与模拟性能，并说明其相比现有方案的提升效果。
英文摘要
Spatial Mode Demultiplexers (SPADE) are devices that split an incoming wavefront into a particular set of electric field modes. SPADEs have been shown to be quantum-optimal for many measurement problems including coronagraphy, wavefront sensing and interferometric (nulling) beam combiners. We will show how quantum optimal SPADEs can be implemented using Multi Plane Light Converters (MPLC). MPLCs are devices that use several phase plates in sequence to achieve arbitrary unitary transformations. The phase plates themselves are implemented using liquid-crystal technology that allows us to create high-quality broadband phase plates. The accurate control of the local phase through the direct write method results in MPLCs with minimal background scatter. We will show the designs and simulated performance for each of the proposed use cases for the ELTs, HWO and LIFE and show how they improve over current concepts.
CommentsSubmitted to SPIE Astronomical Telescopes and Instruments. Proc. SPIE 14154, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VII, 1415419 (21 Aug 2026)
