Numerical modeling of photorefractive crystals for self-adapting external cavity laser mirrors

摘要

The process of refractive index grating formation in a photorefractive crystal, used as the self-adapting spectral filter in an external cavity of a semiconductor laser, is studied using a self-consistent model. The model is based on the Finite Difference solution of the Kukhtarev equations. The results obtained are compared with the ones provided by approximate analytical models.