Generation of optical vector beams using a two-mode fiber
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Updated: Jun 24, 2026
The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Nirmal K Viswanathan1, V V G Inavalli
1School of Physics, University of Hyderabad, Hyderabad 500046, India. nirmalsp@uohyd.ernet.in
Abstract:
We present the generation of optical vector beams using a two-mode fiber (TMF)-based beam converter. The TMF converts the input Gaussian (TEM(00)) beam into linearly polarized Hermite-Gaussian (HG(10), HG(01)) beams, a radially polarized Laguerre-Gaussian (LG(1)(0)) beam with single helical charge or coherent linear combinations of the different vector modes guided in the fiber, depending on the input beam polarization, the fiber length, and the launch condition. Polarization and two-beam interference analyses of the output beam characterize the electric field orientations of the output beam and the presence of transverse and longitudinal optical vortex in the generated HG and LG beams.
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