Low-Loss Multimode-Interference-Based Crossings for Silicon Wire Waveguides
作者： Hui Chen , Andrew W. Poon
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摘要: We report multimode-interference (MMI)-based crossings in high-index-contrast silicon wire waveguides. Our experiments show an MMI crossing of ~0.4-dB insertion loss, which suggests ~0.9-dB improvement from a control plain the same size and refractive index contrast. also experimentally observe significant crosstalk suppression our crossing. The transmission exhibits wavelength dependence less than 0.2 dB within 1520-1580-nm range
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