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Very low input voltage cascaded travelling wave electroabsorption modulator (CTWEAM) for more than 100 Gbps
KTH, School of Information and Communication Technology (ICT).
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics.ORCID iD: 0000-0001-7056-4379
2013 (English)In: Optics Communications, ISSN 0030-4018, E-ISSN 1873-0310, Vol. 297, 43-47 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents the large signal modeling and simulation of two segmented travelling wave electroabsorption modulators (TWEAM) as a cascaded TWEAM (CTWEAM) structure. It will be demonstrated that a mushroom shaped mesa structure with low series resistance (0.69 Omega-mm) will have 3 dB bandwidth more than sufficient for 100 Gbps operation. For a CTWEAM device with 990 lam active segment length, 1.1 V bias voltage and only 0.4 V peak-to-peak (Vp-p) modulating voltage has a bandwidth of 110 GHz, extinction ratio >4 dB and flat frequency response. This device would be an attractive candidate for short distance optical fiber communication as well as long distance telecommunication at 0.4 Vp-p and 1 Vp-p input RF signal, respectively.

Place, publisher, year, edition, pages
2013. Vol. 297, 43-47 p.
Keyword [en]
Electroabsorption modulator, Travelling wave, 100 Gbps
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-123000DOI: 10.1016/j.optcom.2013.01.028ISI: 000318135300008ScopusID: 2-s2.0-84876138167OAI: diva2:624650

QC 20130603

Available from: 2013-06-03 Created: 2013-05-31 Last updated: 2013-06-03Bibliographically approved

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Islam, A. B. M. HamidulWestergren, Urban
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