A binary holographic technique for infrared laser beam multiplexing is described. The technique was used to generate amplitude distribution matched and phase matched local oscillators for a heterodyne IR imaging detector array. It uses a high accuracy interlaced binary diffraction grating to multiplex single LO wave fronts.
© 1983 Optical Society of America
Wilfrid B. Veldkamp and Eric J. Van Allen, "Binary holographic LO beam multiplexer for IR imaging detector arrays," Appl. Opt. 22, 1497-1507 (1983)