Abstract: According to this method, in order to fabricate active elements which comprise at least one doped part comprising a doping capable of absorbing a pump beam and at least one undoped part, and which have opposed faces of the same geometrical shape, a process of preparing an elongate active rod (5), which has a cross section identical to said geometrical shape, said process comprising at least one step of cutting and one step of joining at least one doped block (6) and at least one undoped block (7, 8), and a process of forming a plurality of active elements from the active rod (5), said formation process comprising at least one step of transverse cutting along the active rod (5) and the step of collectively treating surfaces of the active elements, are carried out in succession.

Abstract: The laser source (1) includes a pumping system (2) and an active element (3) which comprises a doped elongate rod (4) and at least one optical block (5, 6) for guiding the pump rays (F) of at least one pump beam toward the rod (4). The pumping system (2) generates a number of parallel pump rays (F). The entry face (5A, 6A) of the optical block (5, 6) is inclined to the longitudinal axis (X-X) of the rod (4) and is not orthogonal to the pump rays (F) in order to deflect the pump rays (F) by refraction so as to transmit them toward the rod (4), and the inclination of the entry face (5A, 6A) is such that the pump rays (F) reach the bar (4) so as to be distributed over its entire length.

Abstract: According to this method, in order to fabricate active elements which comprise at least one doped part comprising a doping capable of absorbing a pump beam and at least one undoped part, and which have opposed faces of the same geometrical shape, a process of preparing an elongate active rod (5), which has a cross section identical to said geometrical shape, said process comprising at least one step of cutting and one step of joining at least one doped block (6) and at least one undoped block (7, 8), and a process of forming a plurality of active elements from the active rod (5), said formation process comprising at least one step of transverse cutting along the active rod (5) and the step of collectively treating surfaces of the active elements, are carried out in succession.

Abstract: According to the invention, the active element for a laser source comprises an elongate rod comprising a doped matrix capable of absorbing a pump beam in order to amplify laser radiation propagating longitudinally, at least one input face for the pump beam, a first reflection face for the pump beam which is inclined with respect to the longitudinal axis of the rod and at least one interacting second reflection face, at least one of the input face and second reflection face being equally inclined.