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Optimization of integrated electro-absorption modulated laser structures for 100 Gbit/s ethernet using electromagnetic simulation

Tom Johansen, Christophe Kazmierski, Christophe Jany, Chenhui Jiang, Viktor Krozer
2007 2007 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference  

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In this paper three options for very-high bit rate integrated electro-absorption modulated laser (EML) structures are investigated using electromagnetic simulation. A physics based distributed equivalent circuit model taking the slowwave propagation characteristics of the modulation signal into account is proposed for the electro-absorption modulator (EAM) electrode arrangement. This model makes it possible to apply an EM/circuit co-simulation approach to estimate the electrical to optical
more » ... mission bandwidth for the integrated EML. It is shown that a transmission bandwidth of 70 GHz seems feasible with the investigated EML structures if the driving impedance is reduced to 25 . It is also shown that the influence of electromagnetic cross-talk between components can be neglected in the estimation of the transmission bandwidth even in the case of very short separation zones. Finally, a slight decrease in transmission bandwidth is observed for an EML structure without ground pillars.
doi:10.1109/imoc.2007.4404320 fatcat:lem7y55covavpgwlucmnlxgqoe
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Tom Johansen, Christophe Kazmierski, Christophe Jany, Chenhui Jiang, Viktor Krozer. "Optimization of integrated electro-absorption modulated laser structures for 100 Gbit/s ethernet using electromagnetic simulation." 2007 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (2007)