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Bragg thickness criterion for intracavity diffraction gratings

Abstract : The grating thickness limit lFP between the Raman-Nath and the Bragg diffraction regimes is calculated for an index grating placed in an asymmetric Fabry-Perot resonator with a totally reflecting back mirror and compared with that which was obtained for the same grating with no cavity lM . Owing to the increase of the effective interaction length inside the Fabry-Perot cavity, the stronger the front mirror reflectivity R1 of the cavity, the smaller the thickness above which the whole diffracted intensity can be concentrated into one unique diffracted beam: lFP=[(1−√R1)/(1+√R1)]lM/2.
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  • HAL Id : hal-00862351, version 1



Ludivine Menez, Isabelle Zaquine, Alain Maruani, Robert Frey. Bragg thickness criterion for intracavity diffraction gratings. Journal of the Optical Society of America B, Optical Society of America, 2002, 19 (5), pp.965. ⟨hal-00862351⟩



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