3 results about "Mode scrambler" patented technology

The utility model discloses an integration structure of scrambler and cladding light filter and optical fiber laser, wherein the integration structure includes optical fiber, and the optical fiber includes core and cladding, the cladding is wrapped in the outside of core, and the outer circumference of cladding forms the roughened section of the destroyed total reflection characteristic, and the core in roughened section forms the blemish section for changing the refractive index distribution of core, and a plurality of blemishes are equipped in blemish section. The integration structure can realize two functions of cladding light stripping and scrambler, and has the advantages of simple structure, small size, high reliability and good structure integrity.

An infinite impulse response filter includes at least one N x N multimode optical coupler and one or more mode scrambling loops. The at least one N x N multimode optical coupler has N input ports and N output ports. One of the N input ports is coupled to a laser source that generates a light beam. The at least one N x N multimode optical coupler splits the light beam into a plurality of sub-beams that are partitioned in an amplitude domain across the N output ports. One of the N output ports is coupled to a detection system. The one or more mode scrambling loops include a mode scrambler and couple one of the N output ports to one of the N input ports. The one or more mode scrambling loops produce temporal incoherence and spatial incoherence that reduce peak power and speckle contrast of the light beam.

The utility model discloses an integrated structure of a mode scrambler and an optical fiber output head and an optical fiber laser. Wherein the integrated structure comprises an output end cap, a packaging shell and an energy transmitting optical fiber, and the energy transmitting optical fiber comprises a fiber core, a wrapping layer and a coating layer which are sequentially arranged in a sleeving mode from inside to outside; a through cavity is formed in the packaging shell, the output end cap is fixed to one end of the cavity, the output end of the energy transmission optical fiber penetrates into the cavity from the other end of the cavity and is fixedly connected with the output end cap, a blackspot section used for changing refractive index distribution of a fiber core is formed on the fiber core in the cavity, and a plurality of blackspots are arranged in the blackspot section. According to the integrated structure, the mode disturbing effect can be achieved with the minimum loss on the premise that the complexity and the size of the laser are not increased, and the transmission loss of the laser in the fiber core after mode disturbing can be effectively reduced.