摘要:
The invention relates to a laser cavity with central extraction by polarisation for coherent coupling of intense intra-cavity beams. The laser cavity (1) according to the invention comprises an extraction unit (7) with central extraction, which divides the laser cavity (1) longitudinally into two functional portions (P1, P2), namely a first portion (P1) including the active components (3), which amplifies the laser beams (4), and a second portion (P2) which performs coherent coupling of the laser beams (4).
摘要:
The invention concerns a laser amplification system (1) comprising a pumping device (3) and at least one thick amplifier disc (2) having a first face (4), which is reflective at the wavelengths of a pulsed laser beam (7) of the laser amplification system (1) and of a pump beam (8) of the pumping device (3), as well as at least one heat-dissipation component (5) to which this first face (4) of the amplifier disc (2) is firmly secured, the saturation fluence of the active medium of the amplifier disc (2) being equal to or less than 3 J.cm -2 .
摘要:
- Method and laser oscillator for the generation of a laser beam - According to the invention with a view to adjusting, inside said laser oscillator ( 1 ), the phase of each of the N elementary laser beams (FLE.1, FLE.2, FLE.N) generated on the basis of said laser oscillator ( 1 ) in such a way that said elementary laser beams are in phase, the deviation between the phase of an individual elementary laser beam (FLE. 1 ) and the phases of the N- 1 other elementary laser beams (FLE.2, FLE.N) is converted into a level of luminous intensity by means of at least one optical filtering element to which at least a part of each elementary laser beam is directed.
摘要:
The invention concerns a method for producing electrically conductive patterns on a non-developable surface of an insulating substrate, and the resulting device. The invention is characterized in that it consists in: coating the non-developable surface (6) uniformly with a layer of electrically conductive material (9), which is in turn coated with a layer of protective material (10), and then, using a mobile laser head, eliminating by laser ablation the portions of said protective substance layer (10) which do not cover said electrically conductive patterns, then eliminating the portions of said electrically conductive material (9) exposed by the elimination of said portions of said protective material layer (10)
摘要:
The invention concerns a method which consists in coating uniformly the non-developable surface (6) with an electrically conductive material (9), which is in turn coated, by spraying, with a pattern (10) of polymerizable protective material, said pattern being polymerized as it is being formed, and then selectively eliminating, through the openings (10.8) of said pattern (10), the portions of said electrically conductive material (9) which do not cover said electrically conductive patterns.