We report the experimental generation of a high-quality partially coherent dark hollow beam (DHB) by coupling a partially coherent beam into a multimode fiber (MMF) with a suitable incidence angle. The interference experiment of the generated partially coherent DHB passing through double slits is demonstrated. It is found that the coupling efficiency of the MMF, the quality, and the coherence of the generated partially coherent DHB are closely controlled by the coherence of the input beam.
© 2008 Optical Society of America
Coherence and Statistical Optics
Original Manuscript: April 14, 2008
Revised Manuscript: May 9, 2008
Manuscript Accepted: May 10, 2008
Published: June 13, 2008
Chengliang Zhao, Yangjian Cai, Fei Wang, Xuanhui Lu, and Yuzhu Wang, "Generation of a high-quality partially coherent dark hollow beam with a multimode fiber," Opt. Lett. 33, 1389-1391 (2008)