Surface second-harmonic generation based on periodically poled LiNbO3 nonlinear optical crystal

doi:10.1088/1674-1056/20/5/054205

Abstract We have generated a second-harmonic generation (SHG) of a Q-switched microchip Nd:YAG laser on the surface of a periodically poled LiNbO₃ (PPLN) nonlinear crystal near the grazing incidence angle. Three individual SHG waves as transmitted homogeneous, inhomogeneous and reflected radiations have been generated and their intensities are measured and characterized within a desirable range of about 10 different incidence angles of the Nd:YAG laser as pump source on the PPLN surface. The basic of surface nonlinear radiation is also investigated and similar results are calculated and extracted from the theory. Comparison between calculated and measured data shows that they are in good agreement with each other.

Keywords: surface SHG Nd:YAG laser PPLN nonlinear crystal

Received: 01 October 2010
Revised: 20 December 2010
Accepted manuscript online:

PACS:	42.65.-k	(Nonlinear optics)
	31.15.E-
	42.55.Px	(Semiconductor lasers; laser diodes)
	42.55.Rz	(Doped-insulator lasers and other solid state lasers)

Cite this article:

H. Nili-Ahmadabadi and A.R. Khorsandi Surface second-harmonic generation based on periodically poled LiNbO₃ nonlinear optical crystal 2011 Chin. Phys. B 20 054205

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Surface second-harmonic generation based on periodically poled LiNbO3 nonlinear optical crystal

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Surface second-harmonic generation based on periodically poled LiNbO₃ nonlinear optical crystal