Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
53 (1988), S. 1375-1377
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Arrays of coherent optical emitters are attractive for high-speed, wide-angle optical beamsteering or deflection, but uniform arrays radiate undesirable sidelobes. It is shown that dramatic suppression of sidelobes can be accomplished by configuring emitters in a nonuniform pattern. A nearly optimum radiation pattern for scanning results from gradually doubling the interelement spacing across a one-dimensional array. As an example, a 100-element waveguide array of minimum interelement spacing 5 μm radiates a 0.08° main lobe (full width at half-maximum) with a 30× suppression of sidelobe intensity.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.99983
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