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Beam shaping to suppress phase mismatch in high power second-harmonic generation

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2 Author(s)
Hon, David T. ; Hughes Research Labs., Malibu, CA, USA ; Bruesselbach, H.

A deliberate pattern of distributing the radiation energy of a high power laser can minimize the steady-state thermal gradients in a nonlinear crystal, thus permitting a large increase of the average powers of such systems. The theory of the two main techniques of beam shaping-fanning and scanning-is developed. Results of several experiments based on this theory are given. Experimental techniques, including some not yet attempted, are discussed.

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Quantum Electronics, IEEE Journal of  (Volume:16 ,  Issue: 12 )