中国物理B ›› 2008, Vol. 17 ›› Issue (5): 1769-1776.doi: 10.1088/1674-1056/17/5/037

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Study on holographic grating diffraction for Laguerre--Gaussian beam generation

刘义东, 高春清, 高明伟   

  1. Department of Optical-Electronics, School of Science and Technology, Beijing Institute of Technology, Beijing 100081, China
  • 收稿日期:2007-07-20 修回日期:2007-09-27 出版日期:2008-05-20 发布日期:2008-05-20
  • 基金资助:
    Project supported by the Doctorate Fund of the State Education Commission of China (Grant No 20050007027), the National Natural Science Foundation of China (Grant No 60778002) and the Program for New Century Excellent Talents in University (NCET), China.

Study on holographic grating diffraction for Laguerre--Gaussian beam generation

Liu Yi-Dong(刘义东)†, Gao Chun-Qing(高春清)‡, and Gao Ming-Wei(高明伟)   

  1. Department of Optical-Electronics, School of Science and Technology, Beijing Institute of Technology, Beijing 100081, China
  • Received:2007-07-20 Revised:2007-09-27 Online:2008-05-20 Published:2008-05-20
  • Supported by:
    Project supported by the Doctorate Fund of the State Education Commission of China (Grant No 20050007027), the National Natural Science Foundation of China (Grant No 60778002) and the Program for New Century Excellent Talents in University (NCET), China.

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摘要： Laguerre--Gaussian beams, as a special model with spiral phase structure, have been intensively investigated. Holographic grating method is a convenient method of generating Laguerre--Gaussian beams and measuring their orbital angular momenta. But due to some inevitable adverse factors such as lateral displacement, angular deflection and elliptical incident profile of incident beam, the practical effectiveness should be reevaluated. This paper is devoted to the study on the influences of the abovementioned three adverse factors on the holographic grating method. The characteristics of the mode decomposition of diffractive order and the relative powers of the orbital angular momentum eigen-states are also given.

Abstract: Laguerre--Gaussian beams, as a special model with spiral phase structure, have been intensively investigated. Holographic grating method is a convenient method of generating Laguerre--Gaussian beams and measuring their orbital angular momenta. But due to some inevitable adverse factors such as lateral displacement, angular deflection and elliptical incident profile of incident beam, the practical effectiveness should be reevaluated. This paper is devoted to the study on the influences of the abovementioned three adverse factors on the holographic grating method. The characteristics of the mode decomposition of diffractive order and the relative powers of the orbital angular momentum eigen-states are also given.

Key words: Laguerre--Gaussian beam, orbital angular momentum, holographic grating

中图分类号:  (Holographic optical elements; holographic gratings)

  • 42.40.Eq
42.40.Lx (Diffraction efficiency, resolution, and other hologram characteristics)