Coherent light generators – Particular active media – Gas
Reexamination Certificate
2005-05-10
2005-05-10
Ip, Paul (Department: 2828)
Coherent light generators
Particular active media
Gas
C372S069000, C372S070000, C372S092000, C372S099000
Reexamination Certificate
active
06891874
ABSTRACT:
The invention relates to a laser amplifier system consisting of a solid body, which comprises a laser-active medium, of a pumping radiation source for generating a pumping radiation field, which repeatedly permeates the solid body, and of a focusing system. Said focusing system generates a number of different branches of the pumping radiation field that enter the solid body and converts at least one branch emerging from the solid body into one of the branches which enter the solid body and which are different from the emerging branch. The aim of the invention is to improve a laser amplifier system of the aforementioned type in order to be able to generate the highest possible pumping power density in the solid body while requiring the smallest possible amount of complexity. To this end, the focusing system comprises at least one deviating unit which converts, by deviating the radiation field with regard to a single plane of symmetry, at least two first partial branches formed from at least two different branches of the pumping radiation field emerging from the solid into at least two corresponding second partial branches which locally extend in a manner that is separate from the first partial branches and of which at least two branches entering the solid body are formed.
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Giesen, et al., “Der Scheibenlaser mit neuem Pumpdesign Erste Ergebnisse. The thin disk laser with a new pump design First Results”, WLT, XP-00917488, 1999, pp. 36-39.
Erhard Steffen
Giesen Adolf
Stewen Christian
Flores Ruiz Delma R.
Ip Paul
Lipsitz Barry R.
McAllister Douglas M.
Universitaet Stuttgart Institut fuer Strahlwerkzeuge
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