Efficient intracavity second harmonic generation (I.S.H.G.) using the optimal pump laser focusing method

Tran-Ba-Chu , A.J. Bouvier , A. Bouvier , M. Broyer

A detailed analysis of Intracavity Second Harmonic Generation (I.S.H.G.) for small-gain and cw-ring dye lasers is given which includes the optimal laser beam focusing method as an integral part. Expressions are derived for optimal focusing conditions, the optimal crystal length, maximal output power of the second harmonic wave and « non-linear transmission » of the laser mirrors. Experimental work is presented to test the theory. An efficient source of u.v. radiation can be realized for spectroscopic applications.

Mots clés: focusing; optical harmonic generation

Domaines: Articles anciens

Tran-Ba-Chu, A.J. Bouvier, A. Bouvier, M. Broyer. Efficient intracavity second harmonic generation (I.S.H.G.) using the optimal pump laser focusing method. Journal de Physique, 1985, 46 (4), pp.551-560. ⟨10.1051/jphys:01985004604055100⟩. ⟨jpa-00209995⟩