Information, resolution, and space-bandwidth product
Optics Letters, Vol. 23, Issue 18, pp. 1477-1479 (1998)
http://dx.doi.org/10.1364/OL.23.001477
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Abstract
The information capacities of two-dimensional optical low-pass channels are discussed. Coherent and incoherent systems operating under finite optical power and area constraints are characterized in terms of two criteria:spacebandwidth product (SBP; the number of pixels required for achieving maximum information capacity) and resolution (Gmin; the smallest spot size capable of supporting positive capacity gain). A coherent system operating with an initial signal-to-noise ratio (SNR) of 5 can achieve a 48% capacity gain by operating at an optimal SBP that is 3.4 times that of the nominal system. The same system has a resolution that is 0.31 times nominal. Incoherent systems experience additional SNR loss, and with an initial SNR of 5 they achieve capacity gains of 29% at the optimal SBP of 2.8 times nominal. The incoherent system resolution is found to be 0.4 times nominal.
© 1998 Optical Society of America
[of America ]
OCIS Codes
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(100.3020) Image processing : Image reconstruction-restoration
(100.6640) Image processing : Superresolution
(110.4280) Imaging systems : Noise in imaging systems
(200.3050) Optics in computing : Information processing
(350.5730) Other areas of optics : Resolution
Citation
Mark A. Neifeld, "Information, resolution, and space-bandwidth product," Opt. Lett. 23, 1477-1479 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-18-1477
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