TY - JOUR

T1 - Experimental observation of self-imaging in SMF-28 optical fibers

AU - Mangini, F.

AU - Ferraro, M.

AU - Zitelli, M.

AU - Niang, A.

AU - Tonello, A.

AU - Couderc, V.

AU - Sidelnikov, O.

AU - Frezza, F.

AU - Wabnitz, S.

N1 - Publisher Copyright: © 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

PY - 2021/4/12

Y1 - 2021/4/12

N2 - Spatial self-imaging, consisting of the periodic replication of the optical transverse beam profile along the propagation direction, can be achieved in guided wave systems when all excited modes interfere in phase. We exploited material defects photoluminescence for directly visualizing self-imaging in a few-mode, nominal singlemode SMF-28 optical fiber. Visible luminescence was excited by intense femtosecond infrared pulses via multiphoton absorption processes. Our method permits us to determine the mode propagation constants and the cutoff wavelength of transverse fiber modes.

AB - Spatial self-imaging, consisting of the periodic replication of the optical transverse beam profile along the propagation direction, can be achieved in guided wave systems when all excited modes interfere in phase. We exploited material defects photoluminescence for directly visualizing self-imaging in a few-mode, nominal singlemode SMF-28 optical fiber. Visible luminescence was excited by intense femtosecond infrared pulses via multiphoton absorption processes. Our method permits us to determine the mode propagation constants and the cutoff wavelength of transverse fiber modes.

UR - http://www.scopus.com/inward/record.url?scp=85104568593&partnerID=8YFLogxK

U2 - 10.1364/OE.419472

DO - 10.1364/OE.419472

M3 - Article

C2 - 33985016

AN - SCOPUS:85104568593

VL - 29

SP - 12625

EP - 12633

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 8

ER -