Electrically induced Bragg Reflectors in InP/InGaAsP waveguides as ultrafast optoelectronic modulators

Abstract

In this paper, with the help of numerical simulations, we show how it is possible to create a Distributed Bragg Reflector by electrically inducing periodical refractive index variations in unperturbed III-V rib-waveguides to design different kind of devices. This approach allows to induce the optoelectronic devices by a suitable reconfiguration of the potential applied to the electrode matrix, i.e. to have a defined routing/switching matrix, or, for dynamic applications, realize intensity modulators, capable of reaching a theoretical 40 GHz switching speed.

Keywords

• bragg grating
• optoelectronic modulator
• electro-optic effects