The invention relates to a laser amplifier system (1) with a solid state disk (2) comprising a laser medium and having two flat faces (3, 4), functional layers (5) comprising a reflector for a pump radiation field (6) and a reflector for a laser radiation field (7) being arranged on the first flat face (3), and the functional layers (5) being thermally and mechanically coupled to a cooling surface (8) of a cooling body (9) to dissipate heat, the coupling being brought about at least to some extent by an adhesive layer (10) that is arranged between the cooling body (9) and the functional layer (5). The laser amplifier system is characterized in that the adhesive layer (10) is formed by an adhesive that substantially changes its volume during transition from the liquid to the solid state. The invention further relates to a method for producing the laser amplifier system (1) according to the invention.

The invention relates to a laser amplifier system (1) having a solid body disc (2) having two flat sides (3, 4) and at least two radiation fields which carry through the two solid body disc (2), a first pump radiation field (7) which is at least partially absorbed by the solid body disc (2) and a second laser radiation field (6) which is at least partially amplified upon passing through the solid body disc (2). On the first flat side (3) of the solid body disc, functional layers (5) are arranged, comprising at least one reflector for the pump radiation field (7) and one reflector for the laser radiation field (6), and the first flat side (3) is in thermal contact to a cooling body (9) to discharge the thermal load (15), the radiation fields (6, 7) effect a thermal load distribution (15) in the solid body disc (2) via absorption in an optically active region and the laser amplifier system (1) furthermore comprises an insulator (10) arranged between the cooling element (9) and the optically active region. The invention is characterized in that the insulator (10) has a thermal resistance distribution (14) which is designed substantially anti-proportionally to the thermal load distribution (15).

Laser amplifier system having thermal phase correction

Laser amplifier system with solid state disk

The present invention discloses a laser amplifier with high gain and low thermally induced optical aberrations on the amplified laser beam. The amplifier designs allow simple multipass configurations to optimally extract the gain and reduce thermally induced index of refraction aberrations, making it possible to obtain an amplified laser beam of high quality combined with very high overall gains comparable to those achievable with expensive regenerative amplifiers. The amplifier includes a thin active laser solid to create the population inversion and associated heat generation within the thin laser active solid possible for the desired gain value. The system includes a cooling device in thermal contact with the thin active laser solid to provide good heat transport and high reflectivity coatings at the wavelengths of the pump and laser wavelengths. The pump light sources are laser diodes tuned to the maximum absorption of the laser active material. The amplifier also includes an optical system to transport the pump light to the laser active solid in such a way as to further confine the absorption of light along the two orthogonal directions in the plane of the laser active solid in order to get high population inversion and consequently high gains possible.

Laser amplifiers with high gain and small thermal aberrations

An assembly (134) and an associated method, by which to supportively position an object (356) upon a substrate (362). A trough (364) is formed in the substrate (362) and a glue (366) or other adhesive material (366) is placed thereat. The object (356) is seated upon the substrate (362) and the glue material (366) is heated to a curing temperature. The glue material (366) is cured, hardened, and thereafter cooled. When cooled, stress forces are generated to maintain the object (356) in hard contact with the substrate (362).

Assembly and associated method for supportively affixing an object upon a substrate

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Laser amplifier system with solid state disk

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Laser amplifier system having thermal phase correction

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Laser amplifiers with high gain and small thermal aberrations

Assembly and associated method for supportively affixing an object upon a substrate