System and method for laser ablation calibration
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United States of America Patent
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Oct 12, 2010
Grant Date -
Jul 26, 2007
app pub date -
Jan 26, 2006
filing date -
Jan 26, 2006
priority date (Note) -
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Abstract
Systems and method for determining ablation beam characteristics are provided. Methods include ablating an article with the ablation beam to form a test location having an ablation depth, transmitting a first beam through the test location of the article, transmitting a second beam through a reference location, and determining an ablation beam characteristic based on a phase relationship of the first beam and the second beam downstream of the article. Systems include a light source assembly transmitting a first beam through an ablated test location of an article and a second beam through a reference location disposed outside of the test location, a sensor assembly detecting a first beam and second beam superimposition downstream of the article, and a phase relationship code module for determining a phase relationship between the first beam and the second beam, based on the first beam and second beam superimposition.
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