Abstract: In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a plurality of radiation beams before the beams are coupled into an optical fiber.

Abstract: In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a plurality of radiation beams before the beams are coupled into an optical fiber.

Abstract: In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a plurality of radiation beams before the beams are coupled into an optical fiber.

Abstract: In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a plurality of radiation beams before the beams are coupled into an optical fiber.

Abstract: In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a plurality of radiation beams before the beams are coupled into an optical fiber.

Abstract: In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a plurality of radiation beams before the beams are coupled into an optical fiber.

Abstract: In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a plurality of radiation beams before the beams are coupled into an optical fiber.

Abstract: In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a plurality of radiation beams before the beams are coupled into an optical fiber.

Abstract: A system for measuring the wavefront characteristics of a powerful laser close to an emitting or transmitting surface of the laser. The system includes a beam sampler that has a sampling aperture for sampling radiation from a sampled area along the emitting or transmitting surface. The beam sampler includes a reflector for directing un-sampled radiation onto an absorber, which absorbs un-sampled radiation. Radiation sampled by the beam sampler is sensed using a sensor.

Abstract: An RF excited laser assembly includes a pair of opposed electrodes, and at least one inductor. The pair of opposed electrodes defines an inter-electrode gap that provides a discharge volume for laser propagation within a gas medium. The pair of opposed electrodes define one or more discharge-free regions within a laser-free region in the inter-electrode gap. The least one inductor is electrically connected to both electrodes and extends between the electrodes within the inter-electrode gap and inside of the one or more discharge-free regions within the laser-free region.

Abstract: A system for measuring the wavefront characteristics of a powerful laser close to an emitting or transmitting surface of the laser. The system includes a beam sampler that has a sampling aperture for sampling radiation from a sampled area along the emitting or transmitting surface. The beam sampler includes a reflector for directing un-sampled radiation onto an absorber, which absorbs un-sampled radiation. Radiation sampled by the beam sampler is sensed using a sensor.

Abstract: An RF excited laser assembly includes a pair of opposed electrodes, and at least one inductor. The pair of opposed electrodes defines an inter-electrode gap that provides a discharge volume for laser propagation within a gas medium. The pair of opposed electrodes define one or more discharge-free regions within a laser-free region in the inter-electrode gap. The least one inductor is electrically connected to both electrodes and extends between the electrodes within the inter-electrode gap and inside of the one or more discharge-free regions within the laser-free region.