Multiple Quantum Well (MQW) Modulators
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Multiple Quantum Wells (MQWs) have been shown to have properties that are different from the simple bulk semiconductors that are their constituents. One of the most useful is a large electroabsorption effect which can be utilized to make optical intensity modulatorsl. In addition, the degrees of freedom presented to a device designer by MQWs have been shown to allow other interesting effects, such as a blue-shift superlattice2 and the barrier reservoir and quantum well electron transfer structure (BRAQWETS)3.4. In this chapter, we will describe some of the underlying physics behind these effects, and demonstrate how MQWs can be used for optoelectronic modulators and other devices.
KeywordsInsertion Loss Multiple Quantum Well Electric Field Profile Electroabsorption Modulator Incident Optical Intensity
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