Abstract

A volume photorefractive phase mask has been fabricated with incoherent white light from an incandescent source in LiNbO₃:Fe self-defocusing photorefractive crystal for the first time, to our knowledge. It can guide and modulate a probe white light or a laser beam and can be used to transmit an incoherent dark image as the guided modes of the waveguides induced by white-light dark spatial solitons. This also proves the existence of photorefractive nonlinearity of white light.

© 2005 Optical Society of America

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