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Design and Characterization for Travelling Wave Electrodes of High-Speed Mach-Zehnder Electro-Optic Modulator on an N-doped InP Substrate
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- Authors
- Sungil Kim, Chul-Uk Lee, Minhyup Song, Min Hwan Kwak
- Issue Date
- 2018-06
- Citation
- Microwave and Optical Technology Letters, v.60, no.6, pp.1558-1562
- ISSN
- 0895-2477
- Publisher
- John Wiley & Sons
- Language
- English
- Type
- Journal Article
- Abstract
- 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.
- KSP Keywords
- 5 GHz, Coplanar Waveguide Feeding(CPW), Design and fabrication, Electrical signal, Equivalent Circuit, Ground structure, High Speed, InP substrate, Mach-Zehnder(MZ), Mach-Zehnder electro-optic modulator, N-Type InP