The Critical Adiabatic Linear Tapered Waveguide Combined with a Multimode Waveguide Coupler on an SOI Chip

<div>(a) A basic 1 × 1 MMI combined with the input/output single-mode waveguide for width Ws = 0.4 μm and length Ls = 100 μm. (b) A linear tapered waveguide is inserted between the single-mode waveguide and MMI coupler. Width Wt, length Lt, and divergence angle θ describe the linear tapered waveguide.</div>

International Journal of Optics

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Figure 2

Figure 2: The Critical Adiabatic Linear Tapered Waveguide Combined with a Multimode Waveguide Coupler on an SOI Chip 