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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 5, Iss. 11 — Nov. 1, 1966
  • pp: 1782–1790

Optical Spectrum Analysis of Large Space Bandwidth Signals

Carlton E. Thomas  »View Author Affiliations


Applied Optics, Vol. 5, Issue 11, pp. 1782-1790 (1966)
http://dx.doi.org/10.1364/AO.5.001782


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Abstract

Coherent optical spectrum analyzers are available for determining the frequency content of many analog signals written simultaneously on film. The space bandwidth product of each signal must not exceed one thousand for a typical 35 mm system. By sacrificing the multichannel capability of such a computer, single signals with space bandwidth products greater than one million (106) can be analyzed. Two optical systems are described. The first analyzes long signals but maintains the frequency resolution of the multichannel system (one part in one thousand). The second system yields frequency resolution of at least one part in one million. Near real-time, continuous spectrum analysis of analog signals is within the current state of the art. A breadboard system is being built.

© 1966 Optical Society of America

History
Original Manuscript: June 20, 1966
Published: November 1, 1966

Citation
Carlton E. Thomas, "Optical Spectrum Analysis of Large Space Bandwidth Signals," Appl. Opt. 5, 1782-1790 (1966)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-5-11-1782


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References

  1. L. J. Cutrona, E. Leith, C. Palermo, J. Porcello, Inst. Radio Engrs. IT-6, 386 (1960).

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