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1.	Tang, Yongbo, et al. (author) Design and optimization of an arbitrarily segmented traveling wave electrode for an ultrahigh speed electroabsorption modulator 2008 In: Optics Communications. - : Elsevier BV. - 0030-4018 .- 1873-0310. ; 281:20, s. 5177-5182 Journal article (peer-reviewed)abstract The modulation response of an arbitrarily segmented traveling wave electroabsorption modulator (TW-EAM) with a non-periodic electrode layout is analyzed with an effective approach based on the transmission line theory. An optimization method based on a genetic algorithm is used to optimize the segmented electrode with additional capacitive pads for a TW-EAM. Optimized electrode structures are given for 165 mu m-length devices under standard 50 Omega RF termination condition and 210 mu m-length devices with smaller integrated resistors. Great enhancement of performances in modulation response is achieved as compared to the periodic design reported previously. The simulation with the parameters extracted from measurement results suggests that a 3 dB-bandwidth over 100 GHz could be achieved. The eye diagram from the simulation demonstrates that such devices would be competent for a 100Gb/s optical network.
2.	Tang, Yongbo, et al. (author) Modeling and Optimization for Segmented Transmission-Line Electroabsorption Modulators with Asymmetrical Electrodes 2008 In: AOE 2007. - : AOE. - 9780978921736 ; , s. 525-527 Conference paper (peer-reviewed)abstract Normalized RF link gain is derived for a segmented transmission-line electroabsorption modulator. Genetic algorithm is used to optimize the electrode structures which are asymmetrical and non-periodic. Performance of the optimized EAM design is analyzed.

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Type of publication: journal article (1); conference paper (1)

Type of content: peer-reviewed (2)

Author/Editor: Ye, Yuqian (2); Tang, Yongbo (2); Yu, Yichuan (2); He, Sailing (1); Westergren, Urban (1)

University: Royal Institute of Technology (2)

Language: English (2)

Research subject (UKÄ/SCB): Natural sciences (1); Engineering and Technology (1)

Year: 2008 (2)Undo refine

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