Coherent light generators – Particular beam control device – Having particular beam control circuit component
Reexamination Certificate
2011-05-10
2011-05-10
Nguyen, Dung T (Department: 2828)
Coherent light generators
Particular beam control device
Having particular beam control circuit component
C372S029011, C372S029015, C372S038010, C372S038020
Reexamination Certificate
active
07940820
ABSTRACT:
A method of protecting a laser against damage caused by undesired incident light in a resonator includes measuring a parameter, which is a measure for the optical power of the incident light. In more concrete terms, the optical power occurring at a resonator mirror is measured. In response to a result of the measurement, a pumping power for the laser is reduced to reduce the optical power in the resonator to a value that is uncritical for the laser.
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Greenberg Laurence A.
Heidelberger Druckmaschinen AG
Locher Ralph E.
Nguyen Dung T
Stemer Werner H.
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