Generation of Laguerre-Gaussian beam based on spatial light modulator

WANG Huichao; HU Ajian; CHEN Peifeng

doi:10.7510/jgjs.issn.1001-3806.2017.03.028

LASER TECHNOLOGY > 2017 > 41(3): 447-450. > DOI: 10.7510/jgjs.issn.1001-3806.2017.03.028

WANG Huichao, HU Ajian, CHEN Peifeng. Generation of Laguerre-Gaussian beam based on spatial light modulator[J]. LASER TECHNOLOGY, 2017, 41(3): 447-450. DOI: 10.7510/jgjs.issn.1001-3806.2017.03.028

Citation:

WANG Huichao, HU Ajian, CHEN Peifeng. Generation of Laguerre-Gaussian beam based on spatial light modulator[J]. LASER TECHNOLOGY, 2017, 41(3): 447-450. DOI: 10.7510/jgjs.issn.1001-3806.2017.03.028

Citation:

WANG Huichao, HU Ajian, CHEN Peifeng. Generation of Laguerre-Gaussian beam based on spatial light modulator[J]. LASER TECHNOLOGY, 2017, 41(3): 447-450. DOI: 10.7510/jgjs.issn.1001-3806.2017.03.028

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Generation of Laguerre-Gaussian beam based on spatial light modulator

School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China

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Received Date: March 24, 2016
Revised Date: April 24, 2016
Published Date: May 24, 2017

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Abstract

Abstract

In order to handle the difficulty in generating Laguerre-Gaussian mode, the binary amplitude hologram method based on spatial light modulator was presented to produce Laguerre-Gaussian beam. After theoretical analysis and experimental verification, the transfer function of Fourier transform from Gaussian beam to Laguerre-Gaussian beam was derived. Binary hologram which can be used in spatial light modulator was obtained after modifing Laguerre-Gaussian mode simulation. Experimental platform based on 4f system was setup and Laguerre-Gaussian modes of different orders were observed and tested. The results show that, it is easy to build and operate the device conveniently and the device can realize beam output dynamically and controllably. The study is important for the generation of high-order vortex beams and Ince-Gaussian model.
- information optics,
- Laguerre-Gaussian model,
- binary hologram method,
- spatial light modulator

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