The ‘SLAC storage ring, SPEAR, emits up to 150 kW per beam of synchrotron radiation. The power density on components inside the ring reaches 1 kW per cm2, so iransparent windows struck directly by the synchrotron radiation are out of the question. Only 5 x 113~~ of the total radiated power is visible light at 1.5 GeV. This power can be absorbed before the light passes through a window by having...

The average power of solid-state and fiber lasers has considerably increased during the last ten years. The 10 kW power is not record-breaking any longer, and a topical problem nowadays is to create lasers with a power of 100 kW. Therefore, the study of thermal effects caused by absorption of laser radiation in the bulk of optical elements becomes ever more important. The Faraday isolator (FI) ...