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          Institute: MPI für die Physik des Lichts     Collection: Optics and Information     Display Documents

ID: 458890.0, MPI für die Physik des Lichts / Optics and Information
Fiber-modes and fiber-anisotropy characterization using low-coherence interferometry
Authors:Ma, Y. Z.; Sych, Y.; Onishchukov, G.; Ramachandran, S.; Peschel, U.; Schmauss, B.; Leuchs, G.
Date of Publication (YYYY-MM-DD):2009-08
Title of Journal:Applied Physics B-Lasers and Optics
Issue / Number:2-3
Start Page:345
End Page:353
Audience:Not Specified
Abstract / Description:An optical low-coherence interferometry technique has been used to simultaneously resolve the mode profile and to measure the intermodal dispersion of guided modes of a few-mode fiber. Measurements are performed using short samples of fiber (about 50 cm). There is no need for a complex mode-conversion technique to reach a high interference visibility. Four LP mode groups of the few-mode fiber are resolved. Experimental results and numerical simulations show that the ellipticity of the fiber core leads to a distinct splitting of the degenerate high-order modes in group index. For the first time, to the best of our knowledge, it has been demonstrated that degenerate LP11 modes are much more sensitive to core shape variations than the fundamental modes and that intermodal dispersion of high-order degenerate modes can be used for characterizing the anisotropy of an optical waveguide.
External Publication Status:published
Document Type:Article
Version Comment:Automatic journal name synchronization
Communicated by:N. N.
Affiliations:MPI für die Physik des Lichts
External Affiliations:[Ma, Y. Z.; Peschel, U.; Leuchs, G.] Univ Erlangen Nurnberg, Inst Opt Informat & Photon, D-91058 Erlangen, Germany.; [Onishchukov, G.; Peschel, U.; Leuchs, G.] Max Planck Inst Sci Light, D-91058 Erlangen, Germany.; [Sych, Y.; Onishchukov, G.; Peschel, U.; Schmauss, B.; Leuchs, G.] Erlangen Grad Sch Adv Opt Technol, Erlangen, Germany.; [Sych, Y.; Schmauss, B.] Univ Erlangen Nurnberg, Chair Microwave Engn, D-91058 Erlangen, Germany.; [Ramachandran, S.] Tech Univ Denmark, Dept Photon Engn, DK-2800 Lyngby, Denmark.
Identifiers:ISI:000267885000018 [ID No:1]
ISSN:0946-2171 [ID No:2]
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