Figure 6

The OPL as the waveguide width varies when R2=20 µm. (a) TM; (b) TE. OPL, optical path lengths; TE, transverse electric; TM, transverse magnetic.
The OPL as the waveguide width varies when R2=20 µm. (a) TM; (b) TE. OPL, optical path lengths; TE, transverse electric; TM, transverse magnetic.