Hamamatsu-photonics K.k.

Takaaki Morita

Takashi Sekine

Yoshinori Kato

Toshiyuki Kawashima

Takashi Kurita

Yoshinori Tamaoki

Yasuki Takeuchi

Koichi Iyama

Yuma Hatano

Takuto Iguchi

A laser device includes a first laser medium and a second laser medium that have a first surface and a second surface opposite to the first surface, and receive input of excitation light and seed light from the first surface side to amplify the seed light, a holder that holds the first laser medium and the second laser medium; and a pair of cooling units that cool the first laser medium and the second laser medium according to change in volume of a refrigerant.

Laser device

A plate-like laser medium has a through-hole for providing a flow of a cooling medium. The laser medium unit includes the plurality of laser media. A laser beam amplification device includes a laser medium unit, an excitation light sourcethat causes excitation light to enter the laser medium unit, a through-holeof a window member as a unit for supplying the cooling medium in a through-holeof the laser medium, and a cooling medium flow path Farranged around the laser medium unit

Laser medium, laser medium unit, and laser beam amplification device

A laser medium unitin a laser beam amplification device includes a plurality of laser media. A cooling medium flow path Fis provided around the laser medium unitto cool the laser medium unitfrom outside. A sealed space between the laser mediais filled with gas or liquid, and a laser beam for passing through the sealed space is not interfered by a cooling medium flowing outside. Therefore, a fluctuation of an amplified laser beam is prevented, and a quality such as stability and focusing characteristics of the laser beam is improved.

Laser beam amplification device

Growing community of inventors

Hamamatsu, Japan

Takaaki Morita