Abstract

Optical interconnection plays important roles in optical computing and optical communication. Photorefractive dynamic holograms are promising candidates for energy-efficient reconfigurable interconnection.^1,2 It has been demonstrated that photorefractive two-wave mixing (TWM) in the Fourier domain can be used to achieve maximum energy efficiency,^2,3 However, problems exist associated with the nonuniform amplification in photorefractive TWM.⁴ When the pump and probe beams are Fourier transformed and interact inside the crystal, the incident pump/probe intensity ratio is a function of the position. Therefore, the TWM gain, which is determined by the incident intensity ratio, is also position-dependent. When the amplified probe beam is Fourier transformed back, the image will be degraded, resulting in crosstalk noise in photorefractive interconnection.

© 1992 Optical Society of America