Very low input voltage cascaded travelling wave electroabsorption modulator (CTWEAM) for more than 100 Gbps
2013 (English)In: Optics Communications, ISSN 0030-4018, E-ISSN 1873-0310, Vol. 297, 43-47 p.Article in journal (Refereed) Published
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.
Electroabsorption modulator, Travelling wave, 100 Gbps
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-123000DOI: 10.1016/j.optcom.2013.01.028ISI: 000318135300008ScopusID: 2-s2.0-84876138167OAI: oai:DiVA.org:kth-123000DiVA: diva2:624650
QC 201306032013-06-032013-05-312013-06-03Bibliographically approved