The fm 1 fiber mode scrambler produces a stable mode distribution in a fiber and low insertion loss regardless of the light launch conditions. 1a the mode scrambler consists of the multimode fiber itself we use a step index mmf and six sections of fiber squeezers these fiber squeezers add stress through piezoelectric actuators at different orientations on the multimode fiber typically with a 45 deg shift between adjacent sections 0 45 0 45 0 and 45 deg in the illustrated example. In telecommunications a mode scrambler mode mixer is a device for inducing mode coupling in an optical fiber or a device that itself exhibits a uniform output intensity profile independent of the input mode volume or modal excitation condition mode scramblers are used to provide a modal distribution that is independent of the optical source for purposes of laboratory manufacturing or.
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