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Proceedings Paper

80GHz broadband electro-optical modulator with optical fiber structure
Author(s): Jiusheng Li; Zhenwu Bao; Jie Jin
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Paper Abstract

In this letter, a novel broadband optical fiber type M-Z modulator with traveling-wave electrode is proposed. Since the waveguides are formed using special optical fiber, the microwave field is concentrated in the optical fiber regions. The finite element method has been used to analyze the microwave equivalent refractive index and characteristic impedance. Then, the performance of the modulator has been simulated using the neural network. The calculated and simulation results are shown in figures. Compared with the conventional modulator, the novel modulator can easily obtain the velocity matching and impedance matching. Using this structure, we have developed a fiber type M-Z modulator with 80GHz 3dB bandwidth, 1.18V half-wave driving voltage, and 55.5Ω impedance.

Paper Details

Date Published: 31 January 2005
PDF: 6 pages
Proc. SPIE 5624, Semiconductor and Organic Optoelectronic Materials and Devices, (31 January 2005); doi: 10.1117/12.569966
Show Author Affiliations
Jiusheng Li, Zhejiang Univ. (China)
Zhenwu Bao, Tianjin Univ. (China)
Jie Jin, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 5624:
Semiconductor and Organic Optoelectronic Materials and Devices
Chung-En Zah; Yi Luo; Shinji Tsuji, Editor(s)

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