Question: Derive the transfer function of Mach-Zhender type EO modulator with electrode length L in push- push mode and push-pull mode. Assume all fields stay in the same polarization and there is no polarization rotation. You can use birefringence expressions and index definitions given in the notes #2. Question: Derive the transfer function of Mach-Zhender type EO modulator with electrode length L in push- push mode and push-pull mode. Assume all fields stay in the same polarization and there is no polarization rotation. You can use birefringence expressions and index definitions given in the notes #2