A. Ougazzaden, A. Mircea, S. Chelles, F. Devaux, F. Huet, G. Le-Roux
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引用次数: 1
Abstract
Electroabsorption (EA) modulators based on the quantum confined Stark effect (QCSE) reach a high level of performance using InGaAsP/lnGaAsP multi-quantum well (MQW) structures. However applications for optical fiber communications, such as in-line optical pulse reshaping and optical demultiplexing, require polarization independent operation. This means identical on-state attenuation and electroabsorption spectra for both TE and TM modes. That is, the same electron to heavy hole, and electron to light hole transition energies as well as their shift with the applied electric field; and the same oscillator strength for TE and TM modes. The growth was performed by atmospheric pressure MOVPE in a T-shaped reactor.<>
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