U-shaped PN junctions for efficient silicon Mach-Zehnder and microring modulators in the O-band: erratum

We correct two minor errors in the manuscript. The effective diameter of the ring modulator should be 62.5 μm rather than 65 μm. The factor, g, in the FOM for comparing between the O- and C-band results should be 0.83 instead of 0.7.