The production of multiringed Laguerre-Gaussian modes by computer-generated holograms
- 1 June 1998
- journal article
- research article
- Published by Taylor & Francis in Journal of Modern Optics
- Vol. 45 (6) , 1231-1237
- https://doi.org/10.1080/095003498151357
Abstract
A computer-generated hologram is used for the production of high-order multiringed Laguerre–Gaussian modes. These holograms differ from those previously reported in that they have an additional circular discontinuity. The holograms are used in transmission and are designed to convert the fundamental Hermite–Gaussian laser mode into a Laguerre–Gaussian mode with specific azimuthal and radial indices. The optical efficiency exceeds 40% with a radial mode purity of approximately 80%.Keywords
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