[1] [1] P Dong. Silicon photonic integrated circuits for wavelength-division multiplexing applications[J]. IEEE Journal of Selected Topics in Quantum Electronics 2016, 22(6): 370-378.

[2] [2] X Guan, W Shi, L A Rusch. Ultra-dense wavelength-division multiplexing with microring modulator[J]. Journal of Lightwave Technology 2021, 39(13): 4300-4306.

[3] [3] Z Wang, Q Wang, X Han, et al. A low-cost high-resolution solid-state lidar with wavelength division multiplexed components and interleaved orthogonal polarization grating couplers[J]. Journal of Lightwave Technology 2022, 40(7): 2072-2079.

[4] [4] X Wu, C Huang, K Xu, et al. Mode-division multiplexing for silicon photonic network-on-chip[J]. Journal of Lightwave Technology 2017, 35(15): 3223-3228.

[5] [5] J Sharma, Z Xuan, H Li, et al. Silicon photonic microring-based 4×112 Gb/s WDM transmitter with photocurrent-based thermal control in 28 nm CMOS[J]. IEEE Journal of Solid-State Circuits 2022, 57(4): 1187-1198.

[6] [6] D W U Chan, X Wu, Z Zhang, et al. Ultra-wide free-spectral-range silicon microring modulator for high capacity WDM[J]. Journal of Lightwave Technology 2022, 40(24): 7848-7855.

[7] [7] C Xie, X Zou, F Zou, et al. A 32-channel 100 GHz wavelength division multiplexer by interleaving two silicon arrayed waveguide gratings[J]. Chinese Physics B 2021, 30(12).

[8] [8] Y Liu, X Wang, Y Yao, et al. Silicon photonic arrayed waveguide grating with 64 channels for the 2 m spectral range[J]. Optics Letters 2022, 47(5): 1186-1189.

[9] [9] S Weng, P Yuan, W Zhuang, et al. SOI-based multi-channel AWG with fiber bragg grating sensing interrogation system[J]. Photonics 2021, 8(6): 214.

[10] [10] P Yuan, S Weng, S Ji, et al. Performance analysis of fiber bragg grating sensor interrogators based on arrayed waveguide gratings[J]. Optical Engineering 2021, 60(6): 738930.

[11] [11] J Zhou, J Wang, L Zhu, et al. Silicon photonics for 100 Gbaud[J]. Journal of Lightwave Technology 2021, 39(4): 857-867.

[12] [12] D Dai. Silicon nanophotonic integrated devices for on-chip multiplexing and switching[J]. Journal of Lightwave Technology 2017, 35(4): 572-587.

[13] [13] L Zhang, J Xiao. Compact and broadband mode demultiplexer using a subwavelength grating engineered MMI coupler[J]. Journal of the Optical Society of America B-Optical Physics 2021, 38(10): 2830-2836.

[14] [14] Z L Hussain, R S Fyath. Design and simulation of 4-mode (de) multiplexers implemented in conventional and subwavelength grating Si/SiO2 platforms[J]. Optik, 2022, 251: 168449.

[15] [15] Z L Hussain, R S Fyath. Design and simulation of a compact three-mode (de) multiplexer based on a subwavelength grating multimode interference coupler[J]. Photonics and Nanostructures-Fundamentals and Applications 2021, 47: 100966.

[16] [16] J Wang, J J Wang, X Xu, et al. Dual-polarization operating hybrid plasmonic 2×2 multimode interferometer with mode converter for SOI platform[J]. Journal of Modern Optics 2020, 67(20): 1534-1544.

[17] [17] J Zou, F Sun, C Wang, et al. Silicon-based arrayed waveguide gratings for WDM and spectroscopic analysis applications[J]. Optics and Laser Technology 2022, 147, 107656.

[18] [18] A Taha, S Chandran, J Viegas, et al. Compact MMI-based AWGs in a scalable monolithic silicon photonics platform[J]. IEEE Photonics Journal 2021, 13(4): 1-6.

[19] [19] H Hu, Q Fang, S Wang, et al. Folded 15-channel arrayed waveguide gratings on silicon nitride platform with loop reflector[J]. Optics Communications, 2021, 500: 127321.

[20] [20] F Qing, C Xiaoling, Z Yingxuan, et al. Folded silicon-photonics arrayed waveguide grating integrated with loop-mirror reflectors[J]. IEEE Photonics Journal, 2018, 10(4): 1-8.

[21] [21] S Liu, H Hu, X Ma, et al. Low-crosstalk silicon-photonics arrayed waveguide gratings integrated with micro-ring filter[J]. Frontiers in Physics 2022, 10.