基于硅光子学的异步干涉成像仪用于自由空间成像
Silicon Photonics-based Heterodyne Interferometric Imager for free-space imaging
AI总结：
本文提出了一种基于硅光子学的异步干涉成像系统，利用单基线实现一维光谱分析，并通过多基线对实现二维图像重建，展示了其在光谱和成像应用中的潜力。
摘要：
本文报告了基于硅光子学的异步干涉成像系统的設計、製造與驗證。該光子集成電路（PIC）可使用其91個可用基線中的單個基線進行一維光譜分析。PIC利用偏振分離光栅將入射光分為兩種不同偏振態，芯片內的2x4光學雜交器以及強本地振荡器（LO）用於進行異步測量。光學雜交器將輸入信號與LO結合並分裂為兩組成分對，用於相敏測量。此外，PIC可通过结合多个基线对来执行二维图像重建，以测量简单目标的可见性。这些演示展示了PIC在1-D光谱和2-D成像应用中的能力。
英文摘要：
This paper reports on the design, fabrication, and demonstration of a silicon photonics based heterodyne interferometric imaging system. The photonic integrated circuit (PIC) can perform one-dimensional spectroscopy for unique input spectrums using a single baseline within its 91 available baselines. The PIC uses polarization diversifying gratings to separate incoming light into two distinct polarizations, an on-chip 2x4 optical hybrid, and a strong local oscillator (LO) to perform the heterodyne measurements. The optical hybrids combine the input signals with the LO and splitting them into 2 components pairs for phase sensitive measurements. Furthermore, the PIC can perform 2-D image reconstruction by combining many baseline pairs to measure the visibility of a simple target. These demonstrations show the PIC's capabilities for 1-D spectroscopy and 2-D imaging applications.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
