[1] Haifeng Liu, Hongjie Guo, Manqing Tan, et al. Research progress of lithium niobate thin-film modulators. Chinese Optics, 15, 1-13(2022).

[2] Jin Li, Hao Yan, Jie Meng. Research progress of gas absorption spectrum detection technology based on photonic crystal fiber. Optics and Precision Engineering, 29, 2316-2329(2021).

[3] Siqi Hu, Ruijuan Tian, Xuetao Gan. Two-dimensional material photodetector for hybrid silicon photonics. Chinese Optics, 14, 1039-1055(2021).

[4] Genzhu Wu, Chunting Lin, Juncheng Lu, et al. Seven-core photonic crystal fiber temperature sensor. Optics and Precision Engineering, 29, 951-957(2021).

[5] Pei Yuan, Yue Wang, Yuanda Wu, et al. Monolithic integration of a wavelength division multiplexer/demultiplexer and electro-absorption VOAs based on 3 μm-SOI. Infrared and Laser Engineering, 48, 0818004(2019).

[6] Runhan Zhao, Xinyu Meng, Yunhe Zhao, et al. Mode converter based on fiber grating to eliminate intermode interference phenomenon. Infrared and Laser Engineering, 47, 1222001(2018).

[7] J Gosciniak, D T H Tan, B Corbett. Enhanced performance of graphene-based electro-absorption waveguide modulators by engineered optical modes. Journal of Physics D Applied Physics, 48, 235101-235101(2015).

[8] T Yosuke, K Keisuke, A Ryotaro, et al. Full C-band Si photonic crystal waveguide modulator. Optics Letters, 42, 5110-5112(2017).

[9] Yuchen Hu, Heming Chen, Haotian Zhou. Mach-Zehnder modulator based on photonic crystal and nanowire waveguide. Journal of Infrared and Millimeter Waves, 38, 499-507(2019).

[10] Y Terada, T Tatebe, Y Hinakura, et al. Si photonic crystal slow-light modulators with periodic p–n junctions. Journal of Lightwave Technology, 35, 1684-1692(2017).

[11] Haotian Zhou, Heming Chen. A novel compact electro-optic modulator based on photonic crystals. Study on Optical Communications, 45, 46-51(2019).

[12] J Xing, Z Li, X Xiao, et al. Two-mode multiplexer and demultiplexer based on adiabatic couplers. Optics Letters, 38, 3468-3470(2013).

[13] Y Li, C Li, C Li, et al. Compact two-mode (de)multiplexer based on symmetric Y-junction and Multimode interference waveguides. Optics Express, 22, 5781-5786(2014).

[14] J Driscoll, R Grote, B Souhan, et al. Asymmetric Y junctions in silicon waveguides for on-chip mode-division multiplexing. Optics Letters, 38, 1854-1856(2013).

[15] O M Nawwar, H Shalaby, R K Pokharel. Modeling, simulation, and fabrication of bi-directional mode-division multiplexing for silicon-on-insulator platform. Appl Opt, 57, 42-51(2018).

[16] K Mehrabi, A Zarifkar, M Babaei. Compact, high-performance, and fabrication friendly two-mode division multiplexer based on a silicon bent directional coupler. Applied Optics, 59, 3645-3651(2020).

[17] J B Du, L F Zheng, K Xu, et al. High speed and small footprint silicon microring modulator assembly for space-division multiplexed 100-Gbps optical interconnection. Optics Express, 26, 13721-13729(2018).

[18] Tong Xiang, Heming Chen, Yuchen Hu. Silicon-Based integrated device for electro-optic modulation assembly with mode-division multiplexing. Chinese Journal of Lasers, 48, 137-148(2021).

[19] Y C Hu, H M Chen, H T Zhou. Mach-Zehnder modulator based on photonic crystal and nanowire waveguide. Journal of Infrared and Millimeter Waves, 38, 499-507(2019).

[20] [20] Yan Feixu. Research on electrooptic modulat based on photonic crystal resonat with wavy PN junction [D]. Nanjing: Nanjing University of Posts Telecommunications, 2020. (in Chinese)