Drastic reduction of heat release in magneto-optical elements: new ways towards a 100 kW average power Faraday isolator

摘要

Faraday isolators with low heat release are created for high average power lasers. The heat release is reduced either by shortening the optical element (due to cooling to nitrogen temperatures or use of superconducting solenoids) or by employing non-traditional magneto-optical media with better thermo-optical properties. Ft is shown that the suggested ways make it possible to create a Faraday isolator for 100kW average power.