High-efficiency electroabsorption in quaternary AlGaInAs quantum-well optical modulators

13 October 1988

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 24 (21) , 1324-1325
https://doi.org/10.1049/el:19880900

Abstract

Quaternary AlGaInAs quantum-well optical modulators operating at 1.55μm are introduced and demonstrated for the first time. An electron-to-heavy-hole exciton absorption peak shift of over 600 Å is observed for a bias voltage of 6 V. An extinction ratio of 19 dB and high-speed operation over 4 GHz is obtained for this optical modulator.

Keywords

ELECTROABSORPTION
QUANTUM-WELL OPTICAL MODULATORS
1.55 MICRON
6 V
ALGAINAS
EXTINCTION RATIO
ELECTRON-TO-HEAVY-HOLE EXCITON ABSORPTION PEAK SHIFT
HIGH-SPEED OPERATION

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