Laser medium unit and laser device
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United States of America Patent
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Dec 8, 2020
Grant Date -
Nov 21, 2019
app pub date -
Feb 5, 2018
filing date -
Feb 8, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A laser medium unit includes: a plate-shaped laser gain medium which includes a first surface and a second surface opposite to the first surface and generates emission light by the irradiation of excitation light from the first surface; a reflection member that is provided on the second surface so as to reflect the excitation light and the emission light; and a cooling member that cools the laser gain medium. The laser gain medium includes an irradiation area which is irradiated with the excitation light and an outer area which is located outside the irradiation area when viewed from a thickness direction intersecting the first surface and the second surface. The cooling member is thermally connected to the second surface through the reflection member so that a cooling area of the laser gain medium is formed on the second surface.
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