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Photonic quadrature-wave pulses generated by a single electro-optic waveguide modulator for digital transmission

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Abstract

The operation of an electro-optic modulator is described in the frequency domain through parametric interactions mixing optical and microwave photons. A single electro-optic waveguide generates quadrature-wave pulses through the second-order parametric conversion of photons induced by a baseband Fourier microwave (RF) spectrum. The peak amplitude of the optical pulse is obtained from the input amplitude of an unmodulated pump by means of a phasor-like conversion. The physical frequency chirp or the temporal distribution of the spectrum is brought about by the parametric phase evolution and is not related to the time derivative of the output pulse.

© 2015 Optical Society of America

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