Abstract

We propose an intensity modulator based on injection locking of a resonant cavity with gain that has a linear transfer function, multigigahertz bandwidth, possible optical gain, and very low Vπ. The arcsine phase response of the injection-locked resonant cavity placed in one arm of a Mach–Zehnder interferometer is the key to the true linear performance of this modulator. The first (to our knowledge) demonstration of this modulator with 5GHz bandwidth, Vπ of 2.6mV, and 95dB spur-free dynamic range is reported here.

© 2010 Optical Society of America

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