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

F. Mangini, M. Ferraro, M. Zitelli, A. Niang, A. Tonello, V. Couderc, O. Sidelnikov, F. Frezza, S. Wabnitz

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)12625-12633
Number of pages9
JournalOptics Express
Volume29
Issue number8
DOIs
Publication statusPublished - 12 Apr 2021

OECD FOS+WOS

  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

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