Chinese Optics Letters, 2007, 5 (8): 460, Published Online: Aug. 8, 2007
Generation of a hollow laser beam by a multimode fiber 
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Abstract
A simple method to generate a hollow laser beam by multimode fiber is reported. A dark hollow laser beam is generated from a multimode fiber and the dependence of the output beam profile on the incident angle of laser beam is analyzed. The results show that this hollow laser beam can be used to trap and guide cold atoms.
Hongyu Ma, Huadong Cheng, Wenzhuo Zhang, Liang Liu, Yuzhu Wang. Generation of a hollow laser beam by a multimode fiber[J]. Chinese Optics Letters, 2007, 5(8): 460.
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