A high frequency GaAlAs travelling wave electro-optic modulator at 0.82 mu m

Experimental GaAlAs modulators operating at 0.82 mu m using a Mach-Zehnder interferometer configuration were designed and fabricated. Coplanar 50- Omega traveling-wave microwave electrodes were used to obtain a bandwidth-length product of 11.95 GHz-cm. The design, fabrication, and DC performance of the modulator is presented.<>