[1] [1] Reed G T ,Mashanovich G ,Gardes FY ,etal. Silicon optical modulators[J] . Nature Photon. ,2010 ,4(8) : 518-526.

[2] [2] FardST ,Donzella V ,Schmidt S A ,et al. Performance of ultra-thin SOI-based resonators for sensing applications[J] . Opt. Express ,2014 ,22(12) : 14166-14179.

[3] [3] BorghiM ,TrentiA ,PavesiL. Four-wave-mixing controlin a photonic molecule made by silicon microring resonators[J] . Scientific Reports ,2019 ,9(1) : 408.

[4] [4] Zhang M ,Wang C ,Cheng R ,et al. Monolithic ultra-high-Q lithium niobatemicroring resonator[J] . Optica ,2017 ,4(12) :1536-1537.

[5] [5] CaiD ,Lu J ,Chen C ,et al. High Q-factor microring resonator wrapped by the curved waveguide[J] . Scientific Reports ,2015 ,5(1) : 10078.

[6] [6] Little BE ,Chu S T ,Absil P P ,et al. Very high-order microring resonator filters for WDM applications[J] . IEEE Photon. Technol. Lett. ,2004 ,16(10) : 2263-2265.

[7] [7] MelloniA. Synthesis ofa parallel-coupled ring-resonatorfilter [J] . Opt. Lett. ,2001 ,26(12) : 917-919.

[8] [8] Little BE ,Chu ST ,Hryniewicz J V ,et al. Filter synthesis for periodically coupled microring resonators[J] . Opt. Lett. ,2000 ,25(5) : 344-346.

[9] [9] ScheuerJ ,Sukhorukov A A ,Kivshar Y S. All-optical switching of dark states in nonlinear coupled microring resonators[J] . Opt. Lett. ,2010 ,35(21) : 3712-3714.

[10] [10] MancinelliM ,Guider R ,Bettotti P ,et al. Coupled- resonator-induced-transparency conceptforwavelength router applications[J] . Opt. Express ,2011 ,19( 13) : 122227-122240.

[11] [11] Xu Q ,Dong P ,Lipson M. Breaking the delay-bandwidth limitin a photonicstructure[J] . NaturePhys. ,2007 ,3(6) :406-410.

[12] [12] ManipatruniS ,DongP ,Xu Q ,et al. Tunable superluminal propagation on a silicon microchip[J] . Opt. Lett. ,2008 ,33(24) : 2928-2930.

[13] [13] SalitM ,PatiGS ,SalitK ,etal. Fast-lightforastrophysics: super-sensitive gyroscopes and gravitational wave detectors [J] . J. Modern Opt. ,2007 ,54(16/17) : 2425-2440.

[14] [14] Wang F ,Wang X ,Zhou H ,et al. Fano-resonance-based Mach-Zehnderopticalswitch employingdual-buscoupled ring resonator as two-beam interferometer[J] . Opt. Express ,2009 ,17(9) : 7708-7716.

[15] [15] Wang G ,Shen A ,Zhao C ,et al. Fano-resonance-based ultra-high-resolution ratio-metric wavelength monitor on silicon[J] . Opt. Lett. ,2016 ,41(3) : 544-547.

[17] [17] DotanIE ,Scheuer J. Fano resonances in vertically and horizontally coupled micro-resonators [J] . Opt. Communications ,2012 ,285(16) : 3475-3482.

[18] [18] QiuC ,YuP ,Hu T ,et al. Asymmetric Fano resonance in eye-likemicroring system[J] . Appl. Phys. Lett. ,2012 ,101(2) : 228.

[19] [19] Zhou X ,Zhang L ,Armani A M ,et al. An integrated photonic gas sensor enhanced by optimized Fano effects in coupled microring resonatorswith an athermalwaveguide[J] . J. Lightwave Technol. ,2015 ,33(22) : 4521-4530.

[21] [21] YiH ,CitrinD S ,Zhou Z. Highly sensitive silicon microring sensor with sharp asymmetrical resonance [ J ] . Opt. Express ,2010 ,18(3) : 2967-2972.

[22] [22] Zhang Z ,NgG I ,HuT ,etal. Conversion between EIT and Fano spectra in a microring-Bragg grating coupled-resonator system[J] . Appl. Phys. Lett. ,2017 ,111(8) : 081105.

[23] [23] TuZ ,Gao D ,Zhang M ,et al. High-sensitivity complex refractive index sensing based on Fano resonance in the subwavelength grating waveguide micro-ring resonator[J] . Opt. Express ,2017 ,25(17) : 20911-20922.

[24] [24] Peng F ,Wang Z ,Yuan G ,et al. High-sensitivity refractive index sensing based on Fano resonances in a photonic crystal cavity-coupled microring resonator[J] . IEEE Photon. J. ,2018 ,10(2) : 1-8.

[25] [25] Gu L ,Fang H ,LiJ ,etal. A compactstructureforrealizing Lorentzian ,Fano ,and electromagnetically induced transparency resonance lineshapes in a microring resonator [J] . Nanophoton. ,2019 ,8(5) : 841-848.

[26] [26] Xu Y ,LiJ ,Kong M. Various resonancelineshapesavailable in a single microring resonator[J] . J. Opt. ,2021 ,23(4) :045801.

[27] [27] Wang S ,Lu W ,LaiX ,etal. Silicon waveguide-based single cavity Fano resonance temperature sensor [J] . Optoelectronics Lett. ,2023 ,19(3) : 139-143.

[28] [28] Gu L ,Fang L ,Fang H ,etal. Fano resonance lineshapes in a waveguide-microring structure enabled by an air-hole[J] . APL Photon. ,2020 ,5(1) : 016108.

[29] [29] Fang L ,Gu L ,Zheng J ,et al. Controlling resonance lineshapes of a side-coupled waveguide-microring resonator [J] . J. Lightwave Technol. ,2020 ,38(16) : 4429-4434.

[30] [30] WangJ ,Lin J ,Jin P ,et al. Fano resonance in a microring resonator with a micro-reflective unit[J] . Opt. Express ,2023 ,31(19) : 31587-31596.

[31] [31] LuL ,Zhu L ,Zeng Z ,et al. Fano resonance ion sensor enabled by 2D plasmonic sub-nanopores-material[J] . IEEE SensorsJ. ,2021 ,21(13) : 14776-14783.

[32] [32] LuL ,WangS ,ZengZ ,etal. Single silicon waveguideMRR based Fano resonance in the whole spectral bands [ J] . Optoelectronics Lett. ,2022 ,18(7) : 398-403.

[33] [33] Xu Y ,Lu L ,Chen G ,et al. T-shaped silicon waveguide coupled with a micro-ring resonator-based Fano resonance modulator[J] . Appl. Opt. ,2022 ,61(31) : 9217-9224.

[34] [34] HuT ,YuP ,Qiu C ,et al. Tunable Fano resonances based on two-beam interference in microring resonator[J] . Appl. Phys. Lett. ,2013 ,102(1) : 1866.

[35] [35] Zhang W ,LiW ,Yao J. Optically tunable Fano resonancein a grating-based Fabry-Perot cavity-coupled microring resonatoron a silicon chip[J] . Opt. Lett. ,2016 ,41(11) :2474-2477.

[36] [36] LiA ,Bogaerts W. An actively controlled silicon ring resonator with a fully tunable Fano resonance[J] . APL Photon. ,2017 ,2(9) : 096101.

[37] [37] Wang G ,Dai T ,Jiang J ,et al. Slope tunable Fano resonancesin asymmetricembedded microring resonators[J] . J. Opt. ,2017 ,19(2) : 025803.

[38] [38] Zheng S ,Ruan Z ,Gao S ,et al. Compact tunable electromagneticallyinduced transparency and Fano resonance on silicon platform[J] . Opt. Express ,2017 ,25(21) : 25655- 25662.

[39] [39] Zhang Z ,NgG I ,HuT ,etal. Experimentaldemonstration of thermally tunable Fano and EIT resonances in coupled resonant system on SOI platform [J] . IEEE Photon. J. ,2018 ,10(3) : 1-8.

[40] [40] Zhao T ,Xiao H ,LiY ,et al. Independently tunable double Fano resonances based on waveguide-coupled cavities[J] . Opt. Lett. ,2019 ,44(12) : 3154-3157.

[41] [41] Liu X ,Yu Y ,ZhangX. TunableFano resonancewith a high slope rate in a microring-resonator-coupled Mach-Zehnder interferometer[J] . Opt. Lett. ,2019 ,44(2) : 251-254.

[42] [42] Hong Q ,Jiang J ,Zhou S ,et al. Silicon-based on-chip tunable high-Q-factor and low-power Fano resonators with graphene nanoheaters[J] . Nanomater. ,2023 ,13 ( 10) :1636.