Ultra-Compact Transverse Mode Quantum Interference Device on Silicon

Yang Li; Yujie Cheng; Shumin Jiang; Peipeng Xu; Junjie Du; Yingxuan Zhao; Zhen Sheng; Tianzhu Zhang; Hao Li; Lixing You; Guangcan Guo; Lantian Feng; Xifeng Ren; Fuwan Gan

doi:10.1088/0256-307X/42/11/110603

Ultra-Compact Transverse Mode Quantum Interference Device on Silicon

Yang Li
, Yujie Cheng
, Shumin Jiang
, Peipeng Xu
, Junjie Du
, Yingxuan Zhao
, Zhen Sheng
, Tianzhu Zhang
, Hao Li
, Lixing You
, Guangcan Guo
, Lantian Feng^*
, Xifeng Ren^*
, Fuwan Gan^*

^*Corresponding author for this work

School of Physics and Electronic Science

CAS - Shanghai Institute of Microsystem and Information Technology
University of Chinese Academy of Sciences
University of Science and Technology of China

Research output: Contribution to journal › Article › peer-review

Abstract

Quantum photonic integrated circuits offer enhanced stability and scalability for quantum communications, sensing, and computing. Transverse modes in multimode waveguides enable high-dimensional scalability and versatile photon manipulation, but practical adoption requires compact and fabrication-tolerant quantum interference devices. Here, we present an ultra-compact taper-stepped beamsplitter that enables quantum interference between photon pairs in different transverse modes, and cascade it to realize NOON state interferometry. We experimentally achieve high visibilities of 93.9% for HOM interference and 86.5% for NOON state interference, demonstrating that efficient mode interference with active tuning can be realized on this platform.

Original language	English
Article number	110603
Journal	Chinese Physics Letters
Volume	42
Issue number	11
DOIs	https://doi.org/10.1088/0256-307X/42/11/110603
State	Published - Nov 2025

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10.1088/0256-307X/42/11/110603

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title = "Ultra-Compact Transverse Mode Quantum Interference Device on Silicon",

abstract = "Quantum photonic integrated circuits offer enhanced stability and scalability for quantum communications, sensing, and computing. Transverse modes in multimode waveguides enable high-dimensional scalability and versatile photon manipulation, but practical adoption requires compact and fabrication-tolerant quantum interference devices. Here, we present an ultra-compact taper-stepped beamsplitter that enables quantum interference between photon pairs in different transverse modes, and cascade it to realize NOON state interferometry. We experimentally achieve high visibilities of 93.9\% for HOM interference and 86.5\% for NOON state interference, demonstrating that efficient mode interference with active tuning can be realized on this platform.",

author = "Yang Li and Yujie Cheng and Shumin Jiang and Peipeng Xu and Junjie Du and Yingxuan Zhao and Zhen Sheng and Tianzhu Zhang and Hao Li and Lixing You and Guangcan Guo and Lantian Feng and Xifeng Ren and Fuwan Gan",

note = "Publisher Copyright: {\textcopyright} 2025 Chinese Physical Society and IOP Publishing Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved.",

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month = nov,

doi = "10.1088/0256-307X/42/11/110603",

language = "英语",

volume = "42",

journal = "Chinese Physics Letters",

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TY - JOUR

T1 - Ultra-Compact Transverse Mode Quantum Interference Device on Silicon

AU - Li, Yang

AU - Cheng, Yujie

AU - Jiang, Shumin

AU - Xu, Peipeng

AU - Du, Junjie

AU - Zhao, Yingxuan

AU - Sheng, Zhen

AU - Zhang, Tianzhu

AU - Li, Hao

AU - You, Lixing

AU - Guo, Guangcan

AU - Feng, Lantian

AU - Ren, Xifeng

AU - Gan, Fuwan

PY - 2025/11

Y1 - 2025/11

N2 - Quantum photonic integrated circuits offer enhanced stability and scalability for quantum communications, sensing, and computing. Transverse modes in multimode waveguides enable high-dimensional scalability and versatile photon manipulation, but practical adoption requires compact and fabrication-tolerant quantum interference devices. Here, we present an ultra-compact taper-stepped beamsplitter that enables quantum interference between photon pairs in different transverse modes, and cascade it to realize NOON state interferometry. We experimentally achieve high visibilities of 93.9% for HOM interference and 86.5% for NOON state interference, demonstrating that efficient mode interference with active tuning can be realized on this platform.

AB - Quantum photonic integrated circuits offer enhanced stability and scalability for quantum communications, sensing, and computing. Transverse modes in multimode waveguides enable high-dimensional scalability and versatile photon manipulation, but practical adoption requires compact and fabrication-tolerant quantum interference devices. Here, we present an ultra-compact taper-stepped beamsplitter that enables quantum interference between photon pairs in different transverse modes, and cascade it to realize NOON state interferometry. We experimentally achieve high visibilities of 93.9% for HOM interference and 86.5% for NOON state interference, demonstrating that efficient mode interference with active tuning can be realized on this platform.

UR - https://www.scopus.com/pages/publications/105028581676

U2 - 10.1088/0256-307X/42/11/110603

DO - 10.1088/0256-307X/42/11/110603

M3 - 文章

AN - SCOPUS:105028581676

SN - 0256-307X

VL - 42

JO - Chinese Physics Letters

JF - Chinese Physics Letters

IS - 11

M1 - 110603

ER -

Ultra-Compact Transverse Mode Quantum Interference Device on Silicon

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