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

<div>(a) The maximum output power is 0.62 at MMI length Lmmi = 28.7 μm with a 1 × 1 MMI width Wmmi = 4 μm. (b) Maximum output power is 0.51 at Lmmi = 113.0 μm and Wmmi = 8 μm. (c) Maximum output power is 0.41 at Lmmi = 257.2 μm and Wmmi = 12 μm.</div>

International Journal of Optics

fig3

Figure 3

Figure 3: The Critical Adiabatic Linear Tapered Waveguide Combined with a Multimode Waveguide Coupler on an SOI Chip 