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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 2 — Jan. 10, 2006
  • pp: 369–371

Reply to comment on “Partially coherent flat-topped beam and its propagation”

Demeng Xu, Yangjian Cai, De Ge, and Qiang Lin  »View Author Affiliations


Applied Optics, Vol. 45, Issue 2, pp. 369-371 (2006)
http://dx.doi.org/10.1364/AO.45.000369


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Abstract

We point out that there is no oddness in the expression of the cross-spectral density of a partially coherent flat-topped beam given by Ge et al. [Appl. Opt. 43, 4732 (2004)]. The criticism of the comment by Wu et al. [Appl. Opt. 45, 366 (2006)] is not appropriate because no one has proved that the M 2 factor as defined by them must be greater than or equal to 1. We propose a new definition of the M 2 factor that really confines the propagation of partially coherent beams. The new definition leads to M 2 > 1 for the partially coherent beam given by Ge et al.

© 2006 Optical Society of America

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(140.3300) Lasers and laser optics : Laser beam shaping

ToC Category:
Coherence and Statistical Optics

Citation
Demeng Xu, Yangjian Cai, De Ge, and Qiang Lin, "Reply to comment on "Partially coherent flat-topped beam and its propagation"," Appl. Opt. 45, 369-371 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-2-369

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