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US 5,331,653 AGranted
Solid-state laser device
AssigneeMitsui Petrochemical Industries, Ltd.
InventorsMinoru Kojima, Mitsugu Terada, Kazuyoshi Sutoh
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AssigneeMitsui Petrochemical Industries, Ltd.
InventorsMinoru Kojima, Mitsugu Terada, Kazuyoshi Sutoh
Estimating the term…
An object of the invention is to provide a solid state laser device design so as to improve a cooling effect in said laser device; whereby an electric power to be applied to an excitation lamp can be increased, a large oscillation power can be obtained, and a thermal lens effect generated in the laser medium can be suppressed. The solid-state laser device includes a laser medium, an excitation lamp for applying excitation light to the laser medium, a transparent first cooling pipe accommodating the laser medium, a transparent second cooling pipe accommodating the excitation lamp, wherein a first cooling system which feeds a cooling water to the first cooling pipe and a second cooling system which feeds a cooling water to the second cooling pipe are independent of each other and the respective systems have a water-feeding pump. The cooling pipes are formed of cerium-doped quartz glass capable of inhibiting transmission of light having a wavelength not longer than 320 nm.
A solid-state laser device comprising a laser medium, an excitation lamp for applying an excitation light to said laser medium, a transparent first cooling pipe accommodating said laser medium, a transparent second cooling pipe accommodating said excitation lamp, wherein a first cooling system which feeds a cooling water to said first cooling pipe and a second cooling system which feeds a cooling water to said second cooling pipe are independent of each other and the respective systems have a water-feeding pump.
A solid-state laser device comprising a laser medium, an excitation lamp for applying an excitation light to said laser medium, and a transparent first cooling pipe accommodating said laser medium, a transparent second cooling pipe accommodating said excitation lamp, said device being designed to feed a cooling water to said cooling pipes, wherein at least one of said first cooling pipe and said second cooling pipe is formed of cerium-doped quartz glass capable of inhibiting transmission of a light having a wavelength not longer than 320 nm.
A solid-state laser device comprising a laser medium, an excitation lamp for applying an excitation light to said laser medium, a transparent first cooling pipe accommodating said laser medium and a transparent second cooling pipe accommodating said excitation lamp, wherein at least one of said first cooling pipe and said second cooling pipe is formed of cerium-doped quartz glass capable of inhibiting transmission of a light having a wavelength not longer than 320 nm, and wherein a first cooling system which feeds a cooling water to said first cooling pipe and a second cooling system which feeds a cooling water to said second cooling pipe are independent of each other and the respective cooling systems each have a separate water-feeding pump.
Dependencies are inferred from the claim text.