Abstract

With the average power of laser irradiation steadily growing, the problem of suppression for thermally induced effects caused by light absorption becomes ever more important. Among devices that are strongly affected by thermal self-action due to relatively strong absorption in their magneto-optical elements (~10⁻³cm⁻¹) are Faraday isolators and Faraday mirrors. The light absorption gives rise to such parasitic effect as thermally induced depolarization γ [1], which can significantly worsen the isolation ratio I=1/γ, the most important characteristic of Faraday isolators.

© 2007 IEEE