Cheng Zeng

Jan 16, 2025 | opg.optica.org | Jinsong Xia |An Pan |Cheng Zeng |Xiangyu Meng

Polarization splitter-rotators (PSRs) are crucial for on-chip polarization-division multiplexing (PDM) systems. Here, we design and experimentally demonstrate a compact and broadband PSR based on adiabatic mode evolution on a thin-film lithium niobate (TFLN) platform. A novel, to the best of our knowledge, quasi-adiabatic algorithm is proposed to minimize the device size.

Nov 29, 2024 | mdpi.com | Cheng Zeng |Haipeng Wang

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May 14, 2024 | opg.optica.org | Jinsong Xia |Cheng Zeng |You Wu |Junjie Wei

Yellow lasers with high efficiency and tunability play an essential role in many applications. Here, we demonstrate the sum-frequency generation (SFG) of yellow light on a periodically poled thin-film lithium niobate (PP-TFLN) waveguide. Taking advantage of large χ(2) nonlinearity, a high normalized conversion efficiency of 10,097% (W·cm2) is obtained with pump wavelengths of 1317.7 and 1064 nm.

Apr 27, 2024 | arxiv.org | Chong Wang |Peng Liang |Cheng Zeng

arXiv:2404.17739 (cs) View PDF HTML (experimental) Subjects: Software Engineering (cs.SE) Cite as: arXiv:2404.17739 [cs.SE] (or arXiv:2404.17739v1 [cs.SE] for this version) Submission history From: Peng Liang [ view email] [v1] Sat, 27 Apr 2024 00:38:20 UTC (6,078 KB) Bibliographic Tools Bibliographic Explorer Toggle Bibliographic Explorer () Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Links to Code Toggle...

Oct 10, 2023 | opg.optica.org | Qiyuan Yi |Jinsong Xia |An Pan |Cheng Zeng

The 3 dB power splitters are fundamental building blocks for integrated photonic devices. As data capacity requirements continue to rise, there is a growing interest in integrated devices that can accommodate multiple spectral bands, including the conventional O-, C-, and L-bands, and the emerging 2 µm band.