T. Guettler et al., POTENTIAL-INSERTED INGAAS-ALGAINAS SHALLOW QUANTUM-WELLS FOR ELECTROOPTICAL MODULATION AT 1.55 MU-M, Semiconductor science and technology, 12(6), 1997, pp. 729-732
We show that the insertion of ultra thin layers of barrier material in
InGaAs quantum wells allows separate control of the working wavelengt
h, barrier height and quantum well thickness in InGaAs-AlGalnAs quantu
m well electroabsorption modulators, resulting in a drastic improvemen
t of the overall performances of these devices.