Continuously tunable orbital angular momentum generation using a polarization-maintaining fiber
Author(s) -
Robert D. Niederriter,
Mark E. Siemens,
Juliet T. Gopinath
Publication year - 2016
Publication title -
optics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.41.003213
Subject(s) - angular momentum , polarization (electrochemistry) , physics , optics , polarization maintaining optical fiber , orbital angular momentum multiplexing , orbital angular momentum of light , modal , optical fiber , photon , total angular momentum quantum number , materials science , fiber optic sensor , quantum mechanics , chemistry , polymer chemistry
We demonstrate the generation of orbital angular momentum (OAM) in a two-mode polarization-maintaining (PM) optical fiber. We combine two linearly polarized modes of PM fiber to generate linearly polarized optical vortex beams with OAM. The average OAM can be finely varied by changing the phase between modes. We have quantitatively measured the resulting OAM to vary between ±1ℏ per photon while varying the relative phase between the LP 11e - and LP 11o -like fiber modes. The modal purity is 97%.
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