Title :
Generation of a high-quality partially coherent dark hollow beam with a multimode fiber
Author :
Chen, He ; Zhao, Chengliang ; Lu, Xuanhui ; Cai, Yangjian
Author_Institution :
Dept. of Phys., Zhejiang Univ., Hangzhou
Abstract :
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 multimode fiber, the quality and the coherence of the generated partially coherent DHB are closely controlled by the coherence of the input beam. A partially coherent elliptical DHB is generated through focusing the generated partially coherent DHB with a cylindrical lens.
Keywords :
laser beams; laser variables measurement; lenses; light coherence; optical fibres; optical focusing; coupling efficiency; cylindrical lens; dark hollow beam measurement; double slits; high-quality partially coherent DHB; laser beams; light interference pattern; multimode fiber; optical focusing; Atom optics; Fiber nonlinear optics; Holographic optical components; Holography; Interference; Laser beams; Lenses; Optical coupling; Optical fiber communication; Optical filters;
Conference_Titel :
PhotonicsGlobal@Singapore, 2008. IPGC 2008. IEEE
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-3901-0
Electronic_ISBN :
978-1-4244-2906-6
DOI :
10.1109/IPGC.2008.4781499
