[1] Zhong M, Ren G. Weapon System for MIR Laser Countermeasure[J]. Journal of Ordnance Equipment Engineering, 28, 3-6(2007).

[2] Chu X L, Qiu Z A, Zhang Y S et al. Experimental Research of Infrared Detecting System Disturbed by Mid-wave Infrared Laser[J]. Infrared Technology, 33, 440-449(2011).

[3] Yang J F, Liu Y Y, Li T K. The Clinical Practice and Reserach of the Middle-infrared and Short-red Wave Synthetic Therapy Instrument[J]. Infrared Technology, 24, 56-58(2002).

[4] Soref R. Group IV Photonics for the Mid Infrared[J]. Proceedings of Spie the International Society for Optical Engineering, 8629, 02(2013).

[5] Milosevic M M, Nedeljkovic M, Masaud T B et al. Silicon Waveguides and Devices for the Mid-infrared[J]. Applied Physics Letters, 101, 121105-1-121105-4(2012).

[6] Reimer C, Nedeljkovic M, Stothard D et al. Mid-infrared Photonic Crystal Waveguides in Silicon[J]. Optics Express, 20, 29361-29368(2012).

[7] Sanja R, Teigell B N, Andrew K et al. Mid-infrared Vernier Racetrack Resonator Tunable Filter Implemented on a Germanium on SOI Waveguide Platform[J]. Optical Materials Express, 8, 824-835(2018).

[8] Li T T, Nedeljkovic M, Hattasan N et al. Ge-on-Si Modulatorsoperating at Mid-infrared Wavelengths up to 8 μm[J]. Photonics Research, 828-836(2019).

[9] Bazargani H P, Burla M, Chrostowski L et al. Photonic Hilbert Transformers based on Laterally Apodized Integrated Waveguide Bragg Gratings on a SOI Wafer[J]. Optics Letters, 41, 5039-5042(2016).

[10] Pérez-Galacho D, Alonso-Ramos C, Mazeas F et al. Optical Pump-Rejection Filter based on Silicon Sub-Wavelength Engineered Photonic Structures[J]. Optics Letters, 42, 1468-1471(2017).

[11] Liu D, Zhang M, Shi Y et al. Four-channel CWDM (de) Multiplexers Using Cascaded Multimode Waveguide Gratings[J]. IEEE Photonics Technology Letters, 32, 192-195(2020).

[12] Liu D, Wu H, Dai D. Silicon Multimode Waveguide Grating Filter at 2 μm[J]. Journal of Lightwave Technology, 37, 2217-2222(2019).

[13] Jiang J, Qiu H, Wang G et al. Silicon Lateral-Apodized Add-Drop Filter for On-chip Optical Interconnection[J]. Applied Optics, 56, 8425-8429(2017).

[14] Qiu H, Jiang J, Yu P et al. Narrow-band Add-Drop Filter based on Phase-modulated Grating-assisted Contra-Directional Couplers[J]. Journal of Lightwave Technology, 36, 3760-3764(2018).

[15] Jiang J, Qiu H, Wang G et al. Broadband Tunable Filter based on the Loop of Multimode Bragg Grating[J]. Optics Express, 26, 559-566(2018).

[16] Liang X, Cheng R, Shen X et al. Spectral-distortionless, Flat-top, Drop-filter based on Complementarily-misaligned Multimode-waveguide Bragg Gratings[J]. Journal of Lightwave Technology, 38, 6600-6604(2020).

[17] Qiu H, Niu J, Liang X et al. Flat-Top, Sharp-Edge Add-Drop Filters Using Complementary-misalignment-Modulated Grating-assisted Contradirectional Couplers[J]. Journal of Lightwave Technology, 39, 5896-5901(2021).

[18] Yariv A. Coupled-mode Theory for Guided-wave Optics[J]. IEEE Journal of Quantum Electronics, 9, 919-933(1973).

[19] Wang X, Wang Y, Flueckiger J et al. Precise Control of the Coupling Coefficient Through Destructive Interference in Silicon Waveguide Bragg Gratings[J]. Optics Letters, 39, 5519-5522(2014).