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Laser & Optoelectronics Progress, Volume. 59, Issue 17, 1705001(2022)

Measuring Orbital Angular Momentum of Vortex Beam Using Modified Mach-Zehnder Interferometer

Miao Yu1,2, Yaqiu Wang1,2, He Zhang1,2, Yun Zhang1,2, Fan Liu1,2, Shuang Lin1,2, Mingying Chang1,2, Ting Ge1,2, Yuanfei Jiang1,2, Anmin Chen1,2, Suyu Li1,2、*, and Mingxing Jin1,2
Author Affiliations
  • 1Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, Jilin , China
  • 2Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University, Changchun 130012, Jilin , China
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    Schematic of experimental setup

    Fig. 1. Schematic of experimental setup

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    Holographic phase diagrams of LG beams with TC of (a) 2, (b) 5, and (c) 10 generated by SLM at the same incident pulse energy are (a'), (b'), and (c'), respectively

    Fig. 2. Holographic phase diagrams of LG beams with TC of (a) 2, (b) 5, and (c) 10 generated by SLM at the same incident pulse energy are (a'), (b'), and (c'), respectively

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    Simulated interference patterns of LG beam and Gaussian beam, when the TCs of LG beam are (a) 1, (b) 5, (c) 10, (a') -1, (b') -5, and (c') -10, respectively. Initial waist radii of LG beam and Gaussian beam are 1 mm and 5 mm, respectively, and z is 0 m

    Fig. 3. Simulated interference patterns of LG beam and Gaussian beam, when the TCs of LG beam are (a) 1, (b) 5, (c) 10, (a') -1, (b') -5, and (c') -10, respectively. Initial waist radii of LG beam and Gaussian beam are 1 mm and 5 mm, respectively, and z is 0 m

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    Simulated interference patterns of LG beam and Gaussian beam, when the TCs of LG beam are (a) 1, (b) 5, (c) 10, (a') -1, (b') -5, and (c') -10, respectively. Initial waist radii of LG beam and Gaussian beam are 1 mm and 5 mm, respectively, and z is 3 m

    Fig. 4. Simulated interference patterns of LG beam and Gaussian beam, when the TCs of LG beam are (a) 1, (b) 5, (c) 10, (a') -1, (b') -5, and (c') -10, respectively. Initial waist radii of LG beam and Gaussian beam are 1 mm and 5 mm, respectively, and z is 3 m

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    Simulated interference patterns of LG beam and Gaussian beam, when the TCs of LG beam are (a) 1, (b) 5, (c) 10, (a') -1, (b') -5, and (c') -10, respectively. Initial waist radii of LG beam and Gaussian beam are 4 mm and 5 mm, respectively, and z is 3 m

    Fig. 5. Simulated interference patterns of LG beam and Gaussian beam, when the TCs of LG beam are (a) 1, (b) 5, (c) 10, (a') -1, (b') -5, and (c') -10, respectively. Initial waist radii of LG beam and Gaussian beam are 4 mm and 5 mm, respectively, and z is 3 m

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    Interference patterns of Gaussian beam and LG beam whose TCs are (a) 1, (b)5, (c) 10, (a') -1,(b')-5, and (c') -10, respectively, after passing through M-Z interferometer and collected by CCD, when spot diameter of LG beam is 5 mm

    Fig. 6. Interference patterns of Gaussian beam and LG beam whose TCs are (a) 1, (b)5, (c) 10, (a') -1,(b')-5, and (c') -10, respectively, after passing through M-Z interferometer and collected by CCD, when spot diameter of LG beam is 5 mm

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    Interference patterns of Gaussian beam and LG beam whose TCs are (a) 1, (b) 5, (c) 10, (a') -1, (b') -5, and (c')-10, respectively, after passing through M-Z interferometer and collected by CCD, when spot diameter of LG beam is 7 mm

    Fig. 7. Interference patterns of Gaussian beam and LG beam whose TCs are (a) 1, (b) 5, (c) 10, (a') -1, (b') -5, and (c')-10, respectively, after passing through M-Z interferometer and collected by CCD, when spot diameter of LG beam is 7 mm

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    Miao Yu, Yaqiu Wang, He Zhang, Yun Zhang, Fan Liu, Shuang Lin, Mingying Chang, Ting Ge, Yuanfei Jiang, Anmin Chen, Suyu Li, Mingxing Jin. Measuring Orbital Angular Momentum of Vortex Beam Using Modified Mach-Zehnder Interferometer[J]. Laser & Optoelectronics Progress, 2022, 59(17): 1705001

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    Paper Information

    Category: Diffraction and Gratings

    Received: Nov. 20, 2021

    Accepted: Jan. 11, 2022

    Published Online: Jul. 22, 2022

    The Author Email: Suyu Li (sylee@jlu.edu.cn)

    DOI:10.3788/LOP202259.1705001

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology