Journal of Infrared and Millimeter Waves, Volume. 42, Issue 1, 132(2023)
Silicon-based C-band low-loss compact polarization splitter rotator based on PSO algorithm
Fig. 1. The PSR is composed of mode converter and mode beam splitter: (a) 3D view, (b) side view
Fig. 2. The effective refractive index(TE0、TM0 and TE1 modes)of air-clad strip silicon waveguide versus waveguide width(central wavelength 1 550 nm)
Fig. 4. (a)Top view of PSO optimized structure,(b)top view of structure after PSO combined with spline interpolation fitting,(c)the variation of mode conversion efficiency with device length after different iteration times and interpolation optimization
Fig. 5. (a)Variation of mode conversion efficiency and mode field distribution with device length under optimal parameters,(b)other mode converter related literature for comparison
Fig. 6. (a)Top view of PSO optimized structure,(b)the variation process of FOM with the number of iterations,the inset shows the variation process of mode coupling efficiency with the coupling length at 40 iterations
Fig. 7. Mode profile transmission distribution:(a)TE0 mode incident,(b)TE0 mode incident,plot of IL,CT,and PER with wavelength:(c)TE0 mode incident,(d)TM0 mode incident
Fig. 8. Tolerance analysis: (a) △g=+10 nm, (b) △g=-10 nm, (c) △w1=+10 nm, (d) △w1=-10 nm, (e) △w2=+10 nm, (f) △w2=-10 nm, (g) △w3=+10 nm, (h) △w3=-10 nm, (i) △w4=+10 nm, (j) △w4=-10 nm
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Zhan-Qiang HUI, Bin LI, Tian-Tian LI, Dong-Dong HAN, Jia-Min GONG. Silicon-based C-band low-loss compact polarization splitter rotator based on PSO algorithm[J]. Journal of Infrared and Millimeter Waves, 2023, 42(1): 132
Category: Research Articles
Received: Jun. 3, 2022
Accepted: --
Published Online: Feb. 23, 2023
The Author Email: Zhan-Qiang HUI (zhanqianghui@xupt.edu.cn)