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Linearized Ring-Assisted Electrooptical Modulator for Coherent Optical OFDM Links

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3 Author(s)
Beibei Zhang ; ECE Dept., Johns Hopkins Univ., Baltimore, MD, USA ; Khurgin, J.B. ; Morton, P.A.

We present a design for a ring-assisted optical amplitude modulator based on a Mach-Zehnder interferometer with microring resonators coupled to each arm and characterized by improved linearity and dynamic range. We analyze the performance of the proposed device in a coherent optical orthogonal frequency-division-multiplexing system and show that it reduces the bit-error rate compared to conventional modulators.

Published in:

Photonics Technology Letters, IEEE  (Volume:21 ,  Issue: 21 )