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Design and characterization for travelling wave electrodes of high‐speed M ach‐ Z ehnder electro‐optic modulator on an n‐doped I n P substrate
Author(s) -
Kim Sungil,
Lee ChulUk,
Song Minhyup,
Hwan Kwak Min
Publication year - 2018
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.31203
Subject(s) - coplanar waveguide , signal (programming language) , optoelectronics , optical modulator , noise (video) , materials science , electrode , electronic engineering , electrical engineering , engineering , physics , telecommunications , computer science , phase modulation , phase noise , quantum mechanics , artificial intelligence , microwave , image (mathematics) , programming language
Designing a traveling wave electrode (TWE), which feeds a high‐speed electrical signal to modulate an optical signal, is a key issue of high‐speed Mach‐Zehnder electro‐optic modulator (MZM) development fields. In this article, we have presented TWE design and characterization results for an MZM on an n‐type InP substrate operating frequency range from DC to 25 GHz. A coplanar waveguide with ground structure has been adapted to the TWE to overcome lossy characteristics of the n‐type InP substrate and increase noise immunity. The designed results are analyzed as comparing with equivalent circuits extracted by the data, which is measured by a vector network analyzer. Consequently, we hope our results can be helpful in the fields of design and fabrication of high‐speed opto‐electric components.