• Chinese Optics Letters
  • Vol. 19, Issue 6, 060003 (2021)
Mengyue Xu, Mingbo He, Yuntao Zhu, Lin Liu, Lifeng Chen*, Siyuan Yu**, and Xinlun Cai***
Author Affiliations
  • State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510000, China
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    Abstract

    Integrated traveling-wave lithium niobate modulators need relatively large device lengths to achieve low drive voltage. To increase modulation efficiency within a compact footprint, we report an integrated Fabry–Perot-type electro-optic thin film lithium niobate on insulator modulator comprising a phase modulation region sandwiched between two distributed Bragg reflectors. The device exhibits low optical loss and a high tuning efficiency of 15.7 pm/V. We also confirm the modulator’s high-speed modulation performance by non-return-to-zero modulation with a data rate up to 56 Gbit/s.

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    Mengyue Xu, Mingbo He, Yuntao Zhu, Lin Liu, Lifeng Chen, Siyuan Yu, Xinlun Cai. Integrated thin film lithium niobate Fabry–Perot modulator [Invited][J]. Chinese Optics Letters, 2021, 19(6): 060003
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    Category: Special Issue on Lithium Niobate Based Photonic Devices
    Received: Dec. 25, 2020
    Accepted: Feb. 2, 2021
    Published Online: Mar. 26, 2021
    The Author Email: Lifeng Chen (chenlf37@mail.sysu.edu.cn), Siyuan Yu (yusy@mail.sysu.edu.cn), Xinlun Cai (caixlun5@mail.sysu.edu.cn)