Laser control
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United States of America Patent
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N/A
Issued Date -
Jun 7, 2007
app pub date -
Dec 5, 2005
filing date -
Dec 5, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A control system for operating a laser, including: a laser driver and a controller for providing the laser driver with a first electrical input indicative of a desired value for an output characteristic of the laser. The laser driver is arranged to control a second electrical input from the laser driver to the laser on the basis of the first electrical input with reference to a first electric reference. The controller is arranged to control the first electrical input on the basis of an electrical indicator of an actual value of the output characteristic of the laser with reference to a second electrical reference of greater reliability than the first electrical reference, so as to compensate for any variations of the first electrical reference.
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