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相关实验视频

Updated: Jun 27, 2025

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
00:07

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

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基于次波长格子结构的极化不敏感的多模干扰合器.

Ruoran Liu, Weike Zhao, Zejie Yu

    Optics letters
    |May 1, 2024
    PubMed
    概括
    此摘要是机器生成的。

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    研究人员为光子集成电路开发了一种极化不敏感的多模干扰 (MMI) 合器. 这一进步克服了传统MMI合器的极化灵敏度,使其在光通信和开关技术中具有更广泛的应用.

    科学领域:

    • 光子学 是一个光子学.
    • 集成光学 集成光学 集成光学
    • 材料科学 材料科学 材料科学

    背景情况:

    • 多模干扰 (MMI) 合器是光子集成电路的基础.
    • 传统的MMI合器具有极化灵敏度,限制了它们在光学交换机和通信等应用中的使用.

    研究的目的:

    • 提出和演示一个极化不敏感的MMI合器.
    • 为了提高在绝缘体 (SOI) 平台的MMI合器的性能.

    主要方法:

    • 在220nm SOI平台上设计一个极化不敏感的MMI合器.
    • 利用次波长格子结构,为TE和TM模式创建不同的有效干扰长度.
    • 理论和实验验证合器的性能.

    主要成果:

    • 设计的MMI合器在理论上可以实现低额余损失 (TE<0.24dB,TM<0.43dB) 和功率不平衡 (TE<0.6dB,TM<0.5dB) 在1.5-1.6μm之间.
    • 在实验中,制造的MMI合器显示出较低的多余损失 (TE<0.64dB,TM<0.53dB) 和功率失衡 (TE<1dB,TM<0.85dB) 在1.55-1.61μm之间.

    结论:

    • 拟议的亚波长格子辅助MMI合器有效消除了极化灵敏度.

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  • 这项技术为极化不敏感的光子集成电路提供了有前途的解决方案,特别是用于光通信.