Coherent light generators – Particular pumping means
Patent
1997-05-19
1999-07-27
Healy, Brian
Coherent light generators
Particular pumping means
372 70, 372 71, 372 99, 372107, 372108, 372 14, 372 15, H01S 309
Patent
active
059302828
ABSTRACT:
An exemplary laser apparatus comprises an amplification medium which amplifies a coherent beam passing through the amplification medium, a pump which provides energy to the amplification medium, a tunnel having a first end proximate to the pump and a second end proximate to the amplification medium, wherein the energy provided by the pump passes through the tunnel en route to the amplification medium, and a moveable member for adjusting a spatial distribution of the energy provided to the amplification medium by the pump. The moveable member typically comprises a flat, reflecting strip or flap which redirects a portion of the energy of the pump beam to a peripheral region of the amplification medium. The angular and translational position of the flap is adjustable on line so that the pump distribution can be adjusted while the laser is running to reduce observed optical distortions caused by heating of the amplification medium.
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August, Jr. John Leo
Kukla Mark Jon
Unternahrer Josef Robert
General Electric Company
Healy Brian
Ingraham Donald S.
Stoner Douglas E.
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