Low-loss multimode-interference-based crossings for silicon wire waveguides
Low-loss multimode-interference-based crossings for silicon wire waveguides
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DOI:
10.1109/lpt.2006.884726
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发表时间:
2006-11-01
影响因子:
2.6
通讯作者:
Poon, Andrew W.
中科院分区:
文献类型:
--
作者:
Chen, Hui;Poon, Andrew W.
We report multimode-interference (MMI)-based crossings in high-index-contrast silicon wire waveguides. Our experiments show an MMI crossing of similar to 0.4-dB insertion loss, which suggests similar to 0.9-dB improvement from a control plain crossing of the same size and refractive index contrast. We also experimentally observe significant crosstalk suppression in our MMI crossing. The MMI crossing transmission exhibits wavelength dependence of less than 0.2 dB within the 1520-1580-nm wavelength range.