The speckle pattern observed in multimode fiber, is closely related to the modal noise. In this paper we study the intensity distribution of the speckle patterns over the output surface of a multimode graded index fiber as a function of the incident beam alignement over the input surface of the fiber. Three kinds of incident beam misalignment speckle patterns were registrated photographically. Our results shown that the aforementioned distribution is highly dependent on the incident beam alignement.
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