Photonics Research, Volume. 13, Issue 6, 1579(2025)

Broadband thin-film lithium niobate rapid adiabatic couplers enabling highly visible two-photon interference

Sunghyun Moon1,†... Jinil Lee1,2,†, Junhyung Lee1,†, Youngseo Koh1, Changhyun Kim1, Hyeong-Soon Jang1,3, Sangin Kim3, Sang-Wook Han1,2,4, Hojoong Jung1,5,*, and Hyounghan Kwon1,26,* |Show fewer author(s)
Author Affiliations
  • 1Center for Quantum Technology, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
  • 2Division of Quantum Information, KIST School, Korea University of Science and Technology, Seoul 02792, Republic of Korea
  • 3Department of Electrical and Computer Engineering, Ajou University, Suwon 16499, Republic of Korea
  • 4KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
  • 5e-mail: hojoong.jung@kist.re.kr
  • 6e-mail: hyounghankwon@kist.re.kr
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    [28] J. M. F. Cabanillas, D. Onural, M. A. Popović. Rapid adiabatic 3 dB coupler with 50±1% splitting over 200 nm including S, C and L bands in 45 nm CMOS platform. Frontiers in Optics, FTu6B-2(2021).

    [29] J. M. F. Cabanillas, D. M. Kita, A. Khilo. Demonstration and fabrication tolerance study of a low-loss, ultra-broadband rapid adiabatic 3-dB coupler in a next-generation 45 nm monolithic electronic-photonic platform. Optical Fiber Communication Conference, Tu5B-4(2021).

    [30] J. M. F. Cabanillas. Rapid adiabatic devices enabling integrated electronic-photonic quantum systems on chip(2022).

    [37] A. W. Snyder, J. D. Love. Optical Waveguide Theory, 175(1983).

    [48] J. M. F. Cabanillas, M. K. Singh, B. Zhang. Compact broadband rapid-adiabatic polarization splitter-rotators in a monolithic electronic-photonic SOI platform. Conference on Lasers and Electro-Optics (CLEO), 1-2(2021).

    [50] H. Cai, N. Boynton, A. L. Lentine. An adiabatic/diabatic polarization beam splitter. IEEE Optical Interconnects Conference (OI), 102-103(2016).

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    Sunghyun Moon, Jinil Lee, Junhyung Lee, Youngseo Koh, Changhyun Kim, Hyeong-Soon Jang, Sangin Kim, Sang-Wook Han, Hojoong Jung, Hyounghan Kwon, "Broadband thin-film lithium niobate rapid adiabatic couplers enabling highly visible two-photon interference," Photonics Res. 13, 1579 (2025)

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    Paper Information

    Category: Nanophotonics and Photonic Crystals

    Received: Dec. 13, 2024

    Accepted: Mar. 21, 2025

    Published Online: May. 26, 2025

    The Author Email: Hojoong Jung (hojoong.jung@kist.re.kr), Hyounghan Kwon (hyounghankwon@kist.re.kr)

    DOI:10.1364/PRJ.550799

    CSTR:32188.14.PRJ.550799

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