Image of the Week: Fiber Speckle Pattern Red laser light from the end-facet of a short sample of multimode polymer optical fiber was inspected on a black screen. The web pattern disappeared when optimizing the laser input coupling, with speckles from the expected guided modes available for further study, here seen in overlay. —Dirk Voigt, Leiden, Netherlands *Link in Bio #Fiber #Speckle #Pattern #Red #laser #light #polymer #optical