Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1535601 | Optics Communications | 2013 | 5 Pages |
Abstract
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 Ω-mm) will have 3 dB bandwidth more than sufficient for 100 Gbps operation. For a CTWEAM device with 990 μm 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.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
A.B.M. Hamidul Islam, Urban Westergren,