the full visible spectrum of 400–700 nm, with a record low V _π⋅ L of 0.48, 0.25, and 0.17 V⋅ cm at red, green, and blue wavelengths of 630, 520, and 450 nm, respectively, and an operation bandwidth of> 20G H z.
We report an on-chip high-speed visible-band electro-optic modulator that can operate over the full visible spectrum of 400–700 nm, with a record low V _π⋅L of 0.48, 0.25, and 0.17V⋅c m at red, green, and blue wavelengths of 630, 520, and 450 nm, respectively, and an operation bandwidth of >20G H z.