Laser amplifying system

A laser amplifying system comprising:

• a solid body comprising a laser-active material arranged in a laser radiation field, said solid body having a cooling surface and a side surface extending transversely to the cooling surface;
• a solid cooling element forming a carrier for said solid body, said solid body transferring heat created therein areally to said solid cooling element via the cooling surface so that a temperature gradient results in said solid body in a direction towards the cooling surface, with said laser radiation field propagating approximately parallel to said temperature gradient;
• a source for generating pumping light, said pumping light being coupled into said solid body via said side surface for pumping the laser-active material and being guided by reflection in the solid body in a direction approximately parallel to the cooling surface.

A laser amplifying system comprising:

• a solid body comprising a laser-active material arranged in a laser radiation field, said solid body being in the shape of a thin plate with one of an upper and lower side comprising a cooling surface, said cooling surface having an extension greater in a first direction than a thickness of the solid body measured at right angles to said cooling surface,
• a solid cooling element forming a carrier for the solid body, said solid body transferring heat generated therein areally to said solid cooling element via said cooling surface resulting in a temperature gradient in said solid body in a direction towards the cooling surface, with said laser radiation field propagating approximately parallel to said temperature gradient, and
• a source for producing pumping light to pump the laser-active material, said pumping light being guided in said solid body in a direction of guidance substantially transverse to said temperature gradient by total internal reflection at said upper and lower sides of said thin plate.

A laser amplifying system comprising:

• a solid body comprising a laser-active material arranged in a laser radiation field and having a cooling surface,
• a solid cooling element forming a carrier for the solid body, said solid body transferring heat created therein areally to a solid cooling element via the cooling surface so that a temperature gradient results in said solid body in a direction towards the cooling surface, with said laser radiation field propagating approximately parallel to the temperature gradient in the solid body, and
• a source of pump light for pumping the laser-active material via a surface of the solid body that is penetrated by the pump light, said surface penetrated by the pump light being provided with an antireflective coating.

A laser amplifying system comprising:

• a plurality of solid bodies, each comprising a laser-active material arranged in and penetrated by a laser radiation field and each having a cooling surface,
• a pumping light source for pumping the laser-active material,
• a carrier for each of the solid bodies, said carrier forming a solid cooling element for receiving heat transferred areally from the solid body via the cooling surface of the solid body so that a temperature gradient results in the solid body in a direction towards its cooling surface, with said laser radiation field propagating approximately parallel to the temperature gradient in the solid body.

A laser amplifying system comprising:

• a solid body comprising a laser-active material arranged in a laser radiation field and having a cooling surface,
• a pumping light source for pumping the laser-active material,
• a solid cooling element forming a carrier for the solid body, said solid body transferring heat created therein areally to said solid cooling element via the cooling surface so that a temperature gradient results in said solid body in a direction towards the cooling surface, with said laser radiation field propagating approximately parallel to the temperature gradient in the solid body and said temperature gradient in the solid body being essentially constant transversely to the direction of propagation of the laser radiation field in the region penetrated by the laser radiation field.

A laser amplifying system comprising:

• a solid body comprising a laser-active material arranged in a laser radiation field and having a cooling surface,
• a pumping light source for pumping the laser-active material,
• a solid cooling element forming a carrier for the solid body, said solid body transferring heat created therein areally to a solid cooling element via the cooling surface so that a temperature gradient results in said solid body in a direction towards the cooling surface, said temperature gradient in the solid body being essentially constant transversely to the direction of propagation of the laser radiation field in the region penetrated by the pumping light and said laser radiation field propagating approximately parallel to the temperature gradient in the solid body.

A laser amplifying system comprising:

• a solid body comprising a laser-active material arranged in a laser radiation field and having a cooling surface,
• a pumping light source for pumping the laser-active material, said cooling surface of said solid body extending beyond the region penetrated by the pumping light in a direction extending parallel to the cooling surface,
• a solid cooling element forming a carrier for the solid body, said solid body transferring heat created therein areally to said solid cooling element via the cooling surface so that a temperature gradient results in said solid body in a direction towards the cooling surface, with said laser radiation field propagating approximately parallel to the temperature gradient in the solid body.