Optimal design of a multi-mode interference splitter based on SOI

Abstract

In this paper, the multimode waveguide lengths and the output port locations of a SOI (silicon on insulator) material-based 1×4 MMI (multimode interference) optical splitter are optimized by means of FD-BPM (finite difference — beam propagation method). An improved 1×4 MMI optical splitter is designed. Compared with an usual optical splitter, a smaller loss 0. 12dB and a better output port power uniformity 0.11dB are achieved for the optical signal transmission.

References

[1] PowellO.. Journal of Lightwave Technology, 2002, 20: 1851

[2] RickmanA.G., ReedG.T., NamavarF.. Lightwave Technology, 1994, 12: 1771

[3] FangQ., HeY., XinH.. Chinese Journal of Semiconductors, 2005, 26: 276

[4] SoldanL. B., PenningsE. C. M.. Journal of lightwave Technology, 1995, 13: 615

[5] JinZ., PengG.-D.. Optics Communications, 2004, 241: 299

[6] Yin-Jung Chang, Daniel Guidotti, and Lixi Wan, IEEE photonics technology letters, 18 (2006).