Switchable vector vortex beam generation using an optical fiber
Switchable vector vortex beam generation using an optical fiber
We present our experimental results on directly transforming a circular-polarized Gaussian beam into linear-polarized vector vortex beams using a two-mode fiber and demonstrate switching between the different 0th-order vector vortex modes excited and guided in the fiber. Depending on the handiness of circular-polarization of the input Gaussian light beam, its launch angle with respect to the fiber axis and by changing them appropriately it is possible to excite and switch between the different vector vortex modes and its coherent linear superposition supported by the two-mode fiber. The output optical beams due to the selectively excited vector modes in the fiber are characterized by using a rotating analyzer and a two-beam interferometer setup to study the polarization and the phase behavior of the vector vortex beam.
Cylindrical vector beam, Optical fiber, Optical vortex
861-864
Krishna Inavalli, V. V.G.
db7ab576-a272-4f04-b938-3d1772ffbd01
Viswanathan, Nirmal K.
303892a1-3840-491b-9272-b2bd1d76556e
15 March 2010
Krishna Inavalli, V. V.G.
db7ab576-a272-4f04-b938-3d1772ffbd01
Viswanathan, Nirmal K.
303892a1-3840-491b-9272-b2bd1d76556e
Krishna Inavalli, V. V.G. and Viswanathan, Nirmal K.
(2010)
Switchable vector vortex beam generation using an optical fiber.
Optics Communications, 283 (6), .
(doi:10.1016/j.optcom.2009.10.112).
Abstract
We present our experimental results on directly transforming a circular-polarized Gaussian beam into linear-polarized vector vortex beams using a two-mode fiber and demonstrate switching between the different 0th-order vector vortex modes excited and guided in the fiber. Depending on the handiness of circular-polarization of the input Gaussian light beam, its launch angle with respect to the fiber axis and by changing them appropriately it is possible to excite and switch between the different vector vortex modes and its coherent linear superposition supported by the two-mode fiber. The output optical beams due to the selectively excited vector modes in the fiber are characterized by using a rotating analyzer and a two-beam interferometer setup to study the polarization and the phase behavior of the vector vortex beam.
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e-pub ahead of print date: 17 November 2009
Published date: 15 March 2010
Keywords:
Cylindrical vector beam, Optical fiber, Optical vortex
Identifiers
Local EPrints ID: 456669
URI: http://eprints.soton.ac.uk/id/eprint/456669
ISSN: 0030-4018
PURE UUID: fa9263c9-993c-414d-b83d-c9dfe3558048
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Date deposited: 05 May 2022 17:01
Last modified: 17 Mar 2024 04:04
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Contributors
Author:
V. V.G. Krishna Inavalli
Author:
Nirmal K. Viswanathan
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