Resumen de Optimization of the design and operating parameters of active waveguide Bragg gratings for laser performance
Ángel Sanz Felipe, Juan A. Vallés
Active waveguide Bragg gratings (AWBGs) are promising photonic structures that combine the efficient reflective properties of Bragg gratings with the power amplification of rare-earths. This may lead to an amplified multiple reflections regime within the waveguideand a lasing behavior can be achieved. Nevertheless, the light propagation in this structures highly depends on its design parameters and operating conditions. Thus, modelingtheir intermixed contributions to the global grating response is a complex task to be done. In this work, a numerical method has been employed to simulate the optical power propagation along an Er/Yb-codoped AWBG. The dependence of its laser performanceon the fundamental design and operating parameters is analyzed, and optimal parameters are obtained to maximize the AWBG capability as a monolithic laser. A critical Bragg grating efficiency is detected depending on the other key parameters, serving as a starting study to adequately design AWBGs for any laser purposes.
