RARE-EARTH-DOPED INTEGRATED GLASS COMPONENTS - MODELING AND OPTIMIZATION

For the integrated optic erbium-doped phosphate silica amplifier, a co mprehensive model is presented which includes high-concentration dissi pative ion-ion interactions. Based on actual waveguide parameters, the model is seen to reproduce measured gains closely. A rigorous design optimization is performed, and the influence of variations in the laun ched pump power, the core cross section, the waveguide length, the erb ium concentration, and the background losses are evaluated. Optimal de sign proposals are given, and the process reproducibility of the propo sed optimal design is examined. Requirements for process parameter con trol in the wafer fabrication are set up.