Photorefractive effect in bulk chalcogenide glass and devices ma

Optical waveguides – Optical fiber waveguide with cladding

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65311, 385120, 385142, G02B 616

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active

051366770

ABSTRACT:
The photorefractive effect results in a change in the refractive index of bulk chalcogenide glass when it is exposed to certain wavelengths of light, in particular, sub-band-gap light. The effect results in a variety of device structures including a fiber optic faceplate; an optical waveguide; a fiber tap; a lens and a Bragg grating. Methods for fabricating the various devices are described.

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