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.
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This work has been supported by National Natural Science Foundation of China (Grant No. 60588502)
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Song, W., Xie, K. Optimal design of a multi-mode interference splitter based on SOI. Optoelectron. Lett. 4, 92–95 (2008). https://doi.org/10.1007/s11801-008-7111-x
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DOI: https://doi.org/10.1007/s11801-008-7111-x