標題: Ultracompact photonic crystal polarization beam splitter based on multimode interference
作者: Lu, Ming-Feng
Liao, Shan-Mei
Huang, Yang-Tung
生物科技學系
電子工程學系及電子研究所
Department of Biological Science and Technology
Department of Electronics Engineering and Institute of Electronics
公開日期: 1-二月-2010
摘要: We propose a theoretical design for a compact photonic crystal (PC) polarization beam splitter (PBS) based on the multimode interference (MMI) effect. The size of a conventional MMI device designed by the self-imaging principle is not compact enough; therefore, we design a compact PC PBS based on the difference of the interference effect between TE and TM modes. Within the MMI coupler, the dependence of interference of modes on propagation distance is weak for a TE wave and strong for a TM wave; as a result, the length of the MMI section can be only seven lattice constants. Simulation results show that the insertion losses are 0.32 and 0: 89 dB, and the extinction ratios are 14.4 and 17: 5 dB for Port 1 (TE mode) and Port 2 (TM mode), respectively. (C) 2010 Optical Society of America
URI: http://dx.doi.org/10.1364/AO.49.000724
http://hdl.handle.net/11536/5878
ISSN: 0003-6935
DOI: 10.1364/AO.49.000724
期刊: APPLIED OPTICS
Volume: 49
Issue: 4
起始頁: 724
結束頁: 731
顯示於類別:期刊論文


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  1. 000274443600027.pdf