Optical arrangement for obtaining a measurement signal for power measurement in lasers
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United States of America Patent
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Issued Date -
Jan 12, 2006
app pub date -
Nov 29, 2004
filing date -
Nov 27, 2003
priority date (Note) -
Abandoned
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Abstract
In an optical arrangement for obtaining a measurement signal for power measurement in lasers, the object is to reliably prevent laser radiation-induced contamination of the optically active surfaces with comparatively simple means, so that the optical properties of the surfaces, in particular the reflection coefficient, remain unchanged for a longer period of time than in the past. A beam splitter that is arranged on the laser beam axis and that directs a fraction of the laser beam onto a sensor by reflection, has optically active surfaces for the reflection that limit an opposing contamination-free, hermetically sealed inner space that is highly transmissive for the wavelength of the laser radiation.
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