Thermal and Stress Influence on Performance of SOI Racetrack Resonator Raman Lasers

In this paper, the detailed modeling of Raman lasers in silicon-on-insulator guided-wave racetrack resonant microcavities is developed. Modeling based on full-vectorial equations, including thermal and stress effects, is presented for the first time. Simulation results are compared with experimental and theoretical results in the literature, demonstrating very good agreement. Moreover, parametric investigations, including waveguide sizes, pump and Stokes coupling factors, cavity shape, polarization states, and waveguide orientation are presented; and the effects of these characteristics in conjunction with thermal and stress influence on laser features are discussed.