Advances in InP Mach-Zehnder modulators for large capacity photonic network systems

Compact 40 Gbit/s InP Mach-Zehnder (MZ) modulator with low Vpi is demonstrated by introducing new waveguide structure. An InP DQPSK modulator is also realized by monolithically integrating the MZ modulators into a compact MZ interferometer, and 80 Gbit/s operation is confirmed.

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