Wavelength Switching Using GalnAs/InP MQW Variable Refractive-Index Arrayed Waveguides by Thermo-Optic Effect

摘要

We have successfully demonstrated a GalnAs/InP multiple quantum well (MQW)-based wavelength switch composed of the straight arrayed waveguide with linearly varying refractive index distribution by changing the refractive index using thermo-optic effect. Since optical path length differences between waveguides in the array were achieved through refractive index differences that were controlled by SiO_2 mask design in selective metal-organic vapor phase epitaxy (MOVPE), wavelength demultiplexing, and the output port switching in each wavelength of light by the refractive index change in the array waveguides through the thermo-optic etfect were achieved. We have obtained the wavelength switching and the change of transmission spectra in each output ports. arrayed waveguide; GalnAs/InP; multiple quantum well (MQW); wavelength switch; wavelength demultiplexer; selective