Segmented transmission-line electroabsorption modulators
作者： R. Lewen , S. Irmscher , U. Westergren , L. Thylen , U. Eriksson
关键词: Physics 、 Electrical impedance 、 Frequency response 、 Optics 、 Transmission line 、 Bandwidth (signal processing) 、 Omega 、 Characteristic impedance 、 Return loss 、 Optical communication
摘要: We present segmented transmission-line (TML) electroabsorption modulators (EAMs) with characteristic impedance close to 50 /spl Omega/. The TML approach allows us design a traveling-wave EAM Omega/ and very high bandwidth. devices show low return loss (<-15 dB) excellent frequency response up GHz, exhibit maximum model-extrapolated 3 dBe bandwidth (BW) of 90 GHz. An effective modeling tool based on Bloch-wave analysis is derived. Design considerations properties for periodic TML-EAMs are discussed.
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