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Modeling Mach–Zehnder LiNbO 3 external modulators in microwave optical systems
Author(s) -
Fuster J. M.,
Martí J.,
Candelas P.
Publication year - 2001
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.1228
Subject(s) - microwave , mach–zehnder interferometer , electro optic modulator , optical modulator , transfer function , voltage , electrode , electronic engineering , optics , physics , optoelectronics , materials science , engineering , electrical engineering , telecommunications , phase modulation , interferometry , phase noise , quantum mechanics
A novel modeling approach for Mach–Zehnder electro‐optic modulators (MZ–EOMs) in microwave optical systems is presented. MZ–EOM traveling‐wave electrodes are fully characterized by an electrode transfer function (ETF) which considers internal design parameters. This ETF is approximated by the modulator electrical response that, jointly with the half‐wave voltage at dc and the optical insertion loss, are the three parameters on which the model is based. Frequency‐ and time‐domain models are provided. An excellent agreement between theoretical and experimental results validates the proposed modeling approach, useful in simulating microwave optical systems. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 85–90, 2001.