Mention of 100 GHz is also in 3 patents, they all have the same paragraph:

Such coupling modulation generates a modulated optical signal based upon the continuous-wave optical signal that propagates clockwise in the waveguide 2002. The modulated optical signal propagates from the coupling region of the waveguide 2008 and is output from the waveguide 2008 as best shown in FIGS. 18A and 18B. The modulated optical signal output from the waveguide 2008 can have an optical OOK modulation format (i.e., digital pulsed-mode optical signal) or possibly a higher order optical modulation format (such as optical differential phase shift keying format or optical differential quadrature phase shift keying format). The bias conditions of the anode terminal electrode 2051 and the cathode terminal electrode 2053 as well as the electrical signals supplied to the first and second control electrodes 2059, 2061 can be provided by resistors and/or transistors integrated on-chip (i.e., on the substrate 1001) or off-chip. Advantageously, it is expected that the electronic control of the evanescent coupling between the waveguide 2002 and the waveguide 2008 can modulate the optical signal output from the waveguide 2008 at high bandwidths, which can possibly extend up to 100 GHz.