Scalable and Robust Photonic Integrated Unitary Converter Based on Multiplane Light Conversion
Scalable and Robust Photonic Integrated Unitary Converter Based on Multiplane Light Conversion
复制标题
基于多平面光转换的可扩展且鲁棒的光子集成酉转换器
DOI：
10.1103/physrevapplied.17.024071
复制
发表时间：
2022
影响因子：
4.6
通讯作者：
Nakano Yoshiaki
中科院分区：
文献类型：
--
作者：
Tanomura Ryota;Tang Rui;Umezaki Toshikazu;Soma Go;Tanemura Takuo;Nakano Yoshiaki
光单位转换器（OUC）可以将一组相互正交的光模式转换为另一组任意正交模式，有望成为光通信、深度学习和量子计算等多种应用中的关键器件。虽然各种类型的OUC已经在光子集成平台上被证明，但对波导尺寸轻微偏差的灵敏度一直是缩放中的关键问题。在这里，我们证明了基于多平面光转换（MPLC）概念的OUC对波导偏差具有出色的鲁棒性。此外，随着我们的增加，它对制造误差越来越不敏感，这与传统的由马赫-曾德干涉仪组成的OUC结构形成鲜明对比。通过考虑广义的OUC配置，研究了这种独特的健壮性和可伸缩性背后的物理根源。结果表明，每个阶段的耦合模式数量在决定整个OUC的灵敏度方面起着至关重要的作用。当采用全对全耦合干涉仪时，获得了最大的鲁棒性，这在基于hplc的OUC中自然实现。
An optical unitary converter (OUC) that can convert a set ofmutually orthogonal optical modes into another set of arbitraryorthogonal modes is expected to be a key device in diverse applications, including optical communication, deep learning, and quantum computing. While various types of OUC have been demonstrated on photonic integration platforms, the sensitivity against a slight deviation in waveguide dimensions has been the crucial issue in scaling. Here, we demonstrate that an OUC based on the concept of multiplane light conversion (MPLC) shows outstanding robustness against waveguide deviations. Moreover, it becomes more and more insensitive to fabrication errors as we increase, which is in clear contrast to the conventional OUC architecture, composed ofMach-Zehnder interferometers. The physical origin behind this unique robustness and scalability is studied by considering a generalized OUC configuration. As a result, we reveal that the number of coupled modes in each stage plays an essential role in determining the sensitivity of the entire OUC. The maximal robustness is attained when all-to-all-coupled interferometers are employed, which are naturally implemented in a MPLC-based OUC.
影响因子：
35
作者：
Shen, Yichen;Harris, Nicholas C.;Soljacic, Marin
通讯作者：
Soljacic, Marin
影响因子：
19.6
作者：
Carolan, Jacques;Mohseni, Masoud;Englund, Dirk
通讯作者：
Englund, Dirk
硅光子芯片上的 10 端口单一光学处理器
DOI：
--
发表时间：
2021
期刊：
影响因子：
--
作者：
Rui. Tang;Ryota. Tanomura;Takuo;Tanemura; and Yoshiaki. Nakano
通讯作者：
and Yoshiaki. Nakano