We report for the first time, to our knowledge, the characteristics of a so-called nondiffracting beam produced by illumination of a binary-phase reflective holographic optical element with light from a diode laser. The Bessel beam has an intensity profile whose pattern changes little over distances of order 1 m and has a 1/e amplitude radius for the central lobe of ~ 100 μm. This beam may have application for alignment of integrated optic elements in which unguided diffraction-free beams are used to align glass-slab elements containing interconnection holograms to a computer board. The aligning Bessel beam would be produced on reflection from a hologram on the glass-substrate interconnecting element. A single hologram may be used for different substrates having different lengths and functionality because of the large depth of field of the Bessel beam.
© 1993 Optical Society of America
Original Manuscript: January 19, 1993
Published: November 10, 1993
R. P. MacDonald, J. Chrostowski, S. A. Boothroyd, and B. A. Syrett, "Holographic formation of a diode laser nondiffracting beam," Appl. Opt. 32, 6470-6474 (1993)