Space–bandwidth product of optical signals and systems

Adolf W. Lohmann, Rainer G. Dorsch, David Mendlovic, Zeev Zalevsky, Carlos Ferreira

Research output: Contribution to journalArticlepeer-review


The space–bandwidth product (SW) is fundamental for judging the performance of an optical system. Often the SW of a system is defined only as a pure number that counts the degrees of freedom of the system. We claim that a quasi-geometrical representation of the SW in the Wigner domain is more useful. We also represent the input signal as a SW in the Wigner domain. For perfect signal processing it is necessary that the system SW fully embrace the signal SW.

Original languageEnglish
Pages (from-to)470-473
Number of pages4
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Issue number3
StatePublished - Mar 1996


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