Abstract: A three-dimensional prism image guide system for multiple optical signal transmission including a first prism formed from a fiber image guide having first and second ends, with the second end having first and second angled faces. A second prism formed from a fiber image guide is also provided with first and second ends. The first end has first and second angled faces. The first angled face of the first end of the second prism is in facing relationship to the second angled face of the second end of the first prism to form a first optical connection. A third prism is provided having first and second ends. The first end has at least a first angled face that is in facing relationship to the first angled face of the second end of the first prism to form a second optical connection.

Abstract: A de-multiplexing system for optical signals including an optical fiber attached to an optical fiber taper is provided. Optical signals are transmitted through the optical fiber to the optical fiber taper. An etched diffraction grating located at the end of the optical fiber taper de-multiplexes optical signals. Bi-directional de-multiplexing can be accomplished by providing optical fiber tapers with etched diffraction gratings at both ends of the optical transmission fiber. A GRIN lens can be provided for focusing the de-multiplexed signals onto specific optical detectors.

Abstract: A graded index fiber formed of a plurality of fused graded index fibers is provided. Each fiber is formed from a preform comprising a plurality of fused low index rods with at least one high index rod arranged in a pre-determined pattern which have been drawn and fused. An array may be made utilizing such fibers, with each fiber having a center located at a specified position. A method of forming the GRIN fibers and the GRIN fiber array is also provided.

Abstract: Multipath structures formed from coherent fiber bundle structures for interconnecting a number of opto-electronic devices in a compact space. The coherent fiber bundle structures are formed from fiber optic plates and have different geometries and fiber orientations in order to transmit optic signal between opto-electronic device in different locations.