Fibercryst

Centre National De La Recherche Scientifique

Universite Claude Bernard – Lyon1

Cnrs

Julien Didierjean

Patrick Georges

François Balembois

Francois Daniel Balembois

Nicolas Aubry

Didier Perrodin

Jean-Marie Fourmigue

Igor Martial

Damien Sangla

According to one embodiment, the invention relates to a laser gain module () comprising: a laser rod () having a shaft and two optical interfaces () facing each other, the rod () being used for longitudinal or quasi-longitudinal optical pumping; and a metal cooling body (), at least one part of which is molded around the laser rod () in order to cover all of the surfaces other than the optical interfaces in such a way that the laser gain module () forms a solid body that cannot be disassembled at ambient temperature.

Laser gain module and method for producing such a module

An optical amplifier for pulsed laser with short or ultra-short and energetic pulses includes an optical pumping source for generating a pump wave, an elongate amplifying medium including an input interface for receiving an optical signal to be amplified, the medium being able to amplify the optical signal propagating along the amplifying medium and to extract an amplified signal and an optical system for coupling the pump wave in the amplifying medium so as to pump the amplifying medium longitudinally. The amplifying medium has a minimum transverse dimension &#x3c6;and the optical system focuses the pump wave inside the gain medium, the focused pump wave having a transverse dimension &#x3c6;which is smaller than the dimension &#x3c6;of the medium and a smaller numerical aperture than the numerical aperture of the medium, so that the pump wave propagates freely over a part of the amplifying medium and then in a confined manner over a part of the amplifying medium.

Optical amplifier system for pulsed laser based on a guiding gain medium and pulsed laser comprising same

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Caluire et Cuir, France

Julien Didierjean