Title :
Polarisation-insensitive modulators based on multistrain stepped quantum well structures
Author :
Silver, M. ; Greene, P.D. ; Adams, A.R.
Author_Institution :
Dept. of Phys., Surrey Univ., Guildford
fDate :
10/27/1994 12:00:00 AM
Abstract :
Quantum-confined Stark-effect modulators, in which each quantum well contains two or more layers with different tensile strains, can maintain excellent polarisation independence over wide range of electric fields. Matching of the energies of the El-HH1 and El-LHl transitions with applied field can be an order of magnitude closer than for simple, single composition, tensile wells
Keywords :
Stark effect; electro-optical devices; light polarisation; optical modulation; semiconductor quantum wells; El-HH1 transitions; El-LHl transitions; applied field; multistrain stepped quantum well structures; polarisation independence; polarisation-insensitive modulators; quantum-confined Stark-effect modulators; tensile strains;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19941290
