Traveling wave optical modulator with high dynamic range (≪130 dB) at large modulation frequencies

In previous reports, we introduced a new lumped electrode-based optical modulator design with superior linearity (spurious free dynamic range, SFDR ~ 133 dB at 1 Hz bandwidth), and wider linearization bandwidth, when compared with previously reported Resonator-Assisted Mach Zehnder (RAMZ) modulators. Here, we extend the modulator design to a traveling wave (TW) electrode design that produces significant bandwidth improvement capability while maintaining the excellent SFDR (>130 dB at 1 Hz bandwidth). Furthermore, we utilize the combination of externally controlled parameters such as the RF split ratio and RF phase control, for maximum design flexibility and parameter optimization control.