Holographic optical elements for interconnects and sensors

Holographic optical elements (HOEs) in dichromated gelatin (DCG) offer high flexibility in design and packaging, and exhibit high diffraction efficiency even at large deflection angles. HOEs can be used for the efficient coupling of light into the guiding modes of a glass substrate or slab waveguide. Experimental results with multiplex holograms in dichromated gelatin for an optical backplane and a laser Doppler velocimeter system (LDV) are presented.