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Updated: Jun 5, 2025

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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没有格子叶片的光学相位阵列,具有2D圆形稀疏阵列孔径和高效相位校准.

Daixin Lian1, Shi Zhao1, Wenlei Li1

  • 1State Key Laboratory for Modern Optical Instrumentation, Center for Optical & Electromagnetic Research, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Zijingang Campus, Hangzhou 310058, China.

Nanophotonics (Berlin, Germany)
|December 5, 2024
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概括

这项研究展示了一种具有二维圆形稀疏光圈的光子光学相位阵列 (OPA). 这种新的设计实现了宽视野光束转向,用压抑的格子叶片和快速相位校准.

关键词:
光学相位阵列是一种光学相位阵列.阶段校准阶段的校准.是一种.稀疏数组数组是一个稀疏的数组.

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科学领域:

  • 光子学是指光子学的使用方法.
  • 光学工程是指光学工程.
  • 集成光学 集成光学 集成光学

背景情况:

  • 光学相位阵列 (OPA) 对于光束转向应用至关重要.
  • 在没有格叶的情况下实现宽视野 (FOV) 操作是一个重大挑战.
  • 快速而准确的相位校准对于OPA性能至关重要.

研究的目的:

  • 在光子平台上提出和演示一个二维圆形稀疏阵列OPA.
  • 开发和验证一个改进的算法,用于快速准确的OPA相位校准.
  • 评估制造OPA的光束转向性能和距离测量能力.

主要方法:

  • 使用光子学设计和制造一个32元天线稀散分布OPA.
  • 实施基于黄金截面搜索方法的旋转元件电场向量 (GSS-REV) 算法用于相位校准.
  • 远场光束方向测量和频率调制连续波 (FMCW) 范围测量.

主要成果:

  • 在2-D全FOV中展示了没有格子叶片的OPA.
  • 在20°×20°范围内实现光束转向.
  • 测量的侧叶抑制比 (SLSR) >4.81dB,半最大 (FWHM) 的全宽度为~0.63° × 0.59°.
  • 导出了 ~1076 个可解析点.
  • 通过使用FMCW系统成功演示了距离测量.

结论:

  • 拟议的2D圆形稀疏阵列OPA可以通过压缩的格子叶片实现宽FOV光束转向.
  • GSS-REV算法为OPAs提供了快速而准确的相位校准.
  • 集成的OPA芯片显示了包括测距在内的高级应用的潜力.