Abstract
A bias-free two-section Y-branch directional coupler modulator with high linearity based on domain-inverted modulation is fabricated and tested. AJLS102/APC is used as an active core layer with an experimentally confirmed device value of at . The fabricated device shows an extinction voltage of . A two-tone test is performed to demonstrate distortion suppression at 25% modulation depth, which is higher than a conventional Mach–Zehnder modulator.
© 2009 Optical Society of America
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