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Journal Article Analog Performance of Multiple-quantum-well Electroabsorption Modulator
Cited 2 time in scopus Share share facebook twitter linkedin kakaostory
Authors
Y. S. Yun, Y. W. Choi, J. D. Chung, J. H. Kim
Issue Date
2005-09
Citation
Optical and Quantum Electronics, v.37, no.11, pp.1025-1031
ISSN
0306-8919
Publisher
Springer
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1007/s11082-005-0957-2
Abstract
Linearity is an important property of optical devices in analog communication systems. In this paper, we study the 3rd-order intermodulation distortion (IMD3) of an InP/InGaAsP multiple-quantum-well (MQW) traveling-wave type electroabsorption modulator (TW-EAM). We observe that dips in the measured IMD3 results are different from those by general transfer curve of electroabsorption modulators (EAMs). In order to verify it, we analyse the phenomena by using the absorption coefficients according to a wavelength and a bias voltage. Thus, we can see that the dips result from the quantum-confined Stark effect (QCSE). We propose the method to enhance linearity of MQW-EAMs by using this effect in addition to the E/O response. © Springer 2005.
KSP Keywords
Analog Performance, Communication system, Multiple-quantum-well(MQW), Optical devices, Quantum Well(QW), Quantum-confined Stark effect(QCSE), Traveling wave, absorption coefficients, bias voltage, electroabsorption modulator(EAM), intermodulation distortion