کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1539916 | 996648 | 2008 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Design and optimization of an arbitrarily segmented traveling wave electrode for an ultrahigh speed electroabsorption modulator Design and optimization of an arbitrarily segmented traveling wave electrode for an ultrahigh speed electroabsorption modulator](/preview/png/1539916.png)
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 μm-length devices under standard 50 Ω RF termination condition and 210 μm-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.
Journal: Optics Communications - Volume 281, Issue 20, 15 October 2008, Pages 5177–5182