Journal
CHINESE OPTICS LETTERS
Volume 10, Issue 12, Pages -Publisher
OSA-OPTICAL SOC
DOI: 10.3788/COL201210.120501
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Funding
- National Natural Science Foundation of China [61125503, 61078009]
- National 973 Program of China [2011CB808101]
- Foundation for Development of Science and Technology of Shanghai [11XD1402600]
- State Key Laboratory of High Field Laser Physics
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We propose an efficient method for characterizing the orbital angular momentum (OAM) of an optical vortex with a large topological charge (TC) through distinguishing the interference pattern of the non-uniformly-distributed multi-pinholes using fewer pinholes. This method overcomes the limit on large TC detection by multi-point interferometer and can be used to probe optical vortices with arbitrary sizes. In addition, it also has potential application in measuring light beam with OAM from astronomical sources.
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