Holographic Lens for Wide Field-of-View Laser Communication Receiver

Abstract : The design and fabrication of a wide field-of-view (FOV) holographic lens for use in a laser receiver are described. The holographic lens is designed to image incoming laser radiation at 850 nm onto a solid state detector array over a field-of-view of + or - 22.5 degrees x + or - 16 degrees (+ or - 26.7 degrees in the diagonal direction). Experimental results obtained with the holographic wide FOV laser receiver are presented. The location of the focussed spot can be determined to within one pixel of the detector array, providing the laser receiver with an angular resolution better than 1 mrad.