The possibilities offered by type II intracavity second-harmonic generation for all-optical parallel processing of images are investigated. By injecting an image in a linearly polarized pump beam and a homogeneous field with orthogonal polarization, we obtain, according to the value of the latter, either frequency and polarization transfer or contrast enhancement and contour recognition. Noise-filtering effects are also predicted.
© 2003 Optical Society of America
(100.0100) Image processing : Image processing
(190.0190) Nonlinear optics : Nonlinear optics
(190.1450) Nonlinear optics : Bistability
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in
Pierre Scotto, Pere Colet, and Maxi San Miguel, "All-optical image processing with cavity type II second-harmonic generation," Opt. Lett. 28, 1695-1697 (2003)