Optimization of Integrated Electro-Absorption Modulated Laser Structures for 100 Gbit/s Ethernet Using Electromagnetic Simulation

Tom Keinicke Johansen, Christophe Kazmierski, Christophe Jany, Chenhui Jiang, Viktor Krozer

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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 transmission 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.
Original languageEnglish
Title of host publicationIMOC 2007
Publication date2007
ISBN (Print)978-1-4244-0661-6
Publication statusPublished - 2007
EventInternational Microwave and Optoelectronic Conference - Brazil
Duration: 1 Jan 2007 → …


ConferenceInternational Microwave and Optoelectronic Conference
Period01/01/2007 → …

Bibliographical note

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