Title
Use Of Skew Rays In Multimode Fibers To Generate Speckle Field With Nonzero Vorticity
Abstract
Beams at the output of an axially symmetric multimode fiber were produced with mostly positive or negative values of angular index m through skew illumination of the input end of the fiber. In this way rays with predominantly positive or negative helicity were excited inside the fiber. The output cw speckle field at the wavelength λ = 632.8 nm contained large densities N+ and N- of wave-front dislocations, or optical vortices, of both positive and negative sign. Vorticity was defined as V = N+ - N-, was expressed analytically through the Wigner function of the field, and was found experimentally to be in good agreement with theory. © 1999 Optical Society of America.
Publication Date
4-1-1999
Publication Title
Optics Letters
Volume
24
Issue
7
Number of Pages
433-435
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1364/OL.24.000433
Copyright Status
Unknown
Socpus ID
0001765860 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/0001765860
STARS Citation
Bolshtyansky, M. A.; Savchenko, A. Yu; and Zel'dovich, B. Ya, "Use Of Skew Rays In Multimode Fibers To Generate Speckle Field With Nonzero Vorticity" (1999). Scopus Export 1990s. 4107.
https://stars.library.ucf.edu/scopus1990/4107