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

Table 1

A basic 1 × 1 MMI device loss.

W mmi (μm)	L mmi (μm)	Pout (device loss (dB))
4	28.7	0.62(2.08 dB)
8	113.0	0.51(2.92 dB)
12	257.2	0.41(3.87 dB)