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
N1 - Publisher Copyright:
© 2025 Chinese Physical Society and IOP Publishing Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved.
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 -