title: Aberrations of the point spread function of a multimode fiber due to partial mode excitation.
abstract: We investigate the point spread function of a multimode fiber. The distortion of the focal spot created on the fiber output facet is studied for a variety of the parameters. We develop a theoretical model of wavefront shaping through a multimode fiber and use it to confirm our experimental results and analyze the nature of the focal distortions. We show that aberration-free imaging with a large field of view can be achieved by using an appropriate number of segments on the spatial light modulator during the wavefront-shaping procedure. The results describe aberration limits for imaging with multimode fibers as in, e.g., microendoscopy.
authors: Adrien
authors: A
authors: Descloux
authors: Lyubov V
authors: LV
authors: Amitonova
authors: Pepijn W H
authors: PW
authors: Pinkse