Jingli Wang, Liguo Huangfu, Heming Chen. Design of Polarization-Insensitive Multimode Interference 1×3 Optical Power Splitter[J]. Acta Optica Sinica, 2021, 41(7): 0713001
- Acta Optica Sinica
- Vol. 41, Issue 7, 0713001 (2021)
Fig. 1. Schematic configuration of the optical power splitter structure. (a) Top view; (b) Cross section of the waveguide
Fig. 2. LMMI as a function of n(SiNx), in which the inset shows the optical field distribution in the waveguide when n(SiNx) is 1.8, 2.5 and 2.8, respectively
Fig. 3. n(SiNx) as a function of θ under different W1 when the MMI waveguide is polarization-insensitive
Fig. 4. IM of the splitter as a function of θ under different W1. (a) TE mode; (b) TM mode
Fig. 5. 0.5 dB bandwidth of the splitter as a function of θ under different W1. (a) TE mode; (b) TM mode
Fig. 6. IM of the splitter as a function of Wt1, Wt2 and Wt3. (a) TE mode; (b) TM mode
Fig. 7. EL of the splitter as a function of Wt1, Wt2 and Wt3. (a) TE mode; (b) TM mode
Fig. 8. Field distributions of the MMI 1×3 optical power splitter. (a) TE mode; (b) TM mode
Fig. 9. Performance parameters of the splitter as functions of wavelength. (a) LMMI; (b) EL and IM
Fig. 10. Performance parameters including EL, PDL and IM as functions of wavelength. (a) EL and PDL; (b) IM
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