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IQ-Coupling-Loss-Free Polarization-Switched QPSK Modulator

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Abstract

We devised and fabricated a simple polarization-switched QPSK modulator free from the 3-dB IQ-coupling loss. It consists of only three Mach-Zehnder BPSK modulators and a polarization-coupling circuit, and operated at 43 and 84 Gb/s.

© 2012 Optical Society of America

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