Open AccessSuppression of even-order photodiode distortions via predistortion linearization with a bias-shifted Mach-Zehnder modulator
Author(s) -
Vincent J. Urick,
Meredith N. Hutchinson,
Joseph M. Singley,
Jason Mckinney,
K.J. Williams
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.014368
Subject(s) - intermodulation , photodiode , optics , physics , predistortion , electro optic modulator , distortion (music) , linearization , photonics , nonlinear distortion , optoelectronics , amplifier , optical modulator , phase modulation , nonlinear system , cmos , quantum mechanics , phase noise
A new technique to cancel photodiode-induced even-order distortion in microwave photonic links is demonstrated. A single Mach-Zehnder modulator, biased slightly away from the quadrature point, is shown to suppress photodiode second-order intermodulation distortion in excess of 40 dB without affecting the fundamental power. The technique is theoretically described with supporting experimental results.