Chinese Optics Letters, Vol. 5, Issue 8, 460 (2007)
Generation of a hollow laser beam by a multimode fiber
Hongyu Ma*, Huadong Cheng, Wenzhuo Zhang, Liang Liu, and Yuzhu Wang
- Key Laboratory of Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
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.
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