Researching | Detection of fractional orbital angular momentum based on coordinate transformation

Optical Instruments, Volume. 45, Issue 6, 52(2023)

Detection of fractional orbital angular momentum based on coordinate transformation

Xiaonan HU^1,2 and Xinyuan FANG^1,2、*

Author Affiliations

¹Institute of Photonic Chips, University of Shanghai for Science and Technology, Shanghai 200093, China

²School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

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Figures & Tables(6)

Fig. 1. Fractional OAM modes recognition concept map

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Fig. 2. Sector conversion diagram of LG（l = 2）beam

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Fig. 3. Logarithmic conversion diagram of LG（l = −2、3）coherent beams

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Fig. 4. Logarithmic conversion diagram of LG（l=−2、3）beam under reverse design

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Fig. 5. Coordinate transformation diagram under reverse design

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$The intensity curve of the facula after the fractional OAM mode with two different mode intervals passes through the system$

Fig. 6. The intensity curve of the facula after the fractional OAM mode with two different mode intervals passes through the system

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Xiaonan HU, Xinyuan FANG. Detection of fractional orbital angular momentum based on coordinate transformation[J]. Optical Instruments, 2023, 45(6): 52

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Paper Information

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Received: Feb. 27, 2023

Accepted: --

Published Online: Feb. 29, 2024

The Author Email: Xinyuan FANG (xinyuan.fang@usst.edu.cn)

DOI:10.3969/j.issn.1005-5630.202302270029

Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology