Date of Award
Master of Science in Optical Engineering
Department of Physics and Optical Engineering
A photonic switch using two series-connected, reverse-biased semiconductor optical amplifiers integrated onto a single device has been proposed and switching operation has been verified experimentally. The switching operates on two principles; an electrical bistability arising from the connection of two p-i-n structures in series, and the quantum confined Stark effect in reverse-biased multiple quantum well structures. The result is an electroabsorption modulation of the light through the SOAs due to the alternating voltage states. The system simultaneously produces outputs with both inverted and non-inverted hysteresis behavior, with experimental switching speeds demonstrated up to 400 kHz for a reverse-bias voltage of 𝑉𝑅𝐵=2.000V.
Plascak, Michael Edward, "Optical Bistability with Two Serially Integrated InP-SOAs on a Chip" (2015). Graduate Theses - Physics and Optical Engineering. 9.