Accession Number : ADD012956

Title :   Wavelength Dependent, Tunable, Optical Time Delay System for Electrical Signals.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Soref,Richard A

Report Date : 09 Jun 1987

Pagination or Media Count : 8

Abstract : This patent discloses a wavelength dependent, tunable, optical time delay system for electrical signals having a conversion/tuning unit for converting an incoming electrical signal into an optical signal as well as selectively varying the wavelength of the optical signal; a single-mode, high dispersion optical fiber for receiving the optical signal and through which the optical signal propagates at a speed dependent upon its wavelength; and a dector/converter for converting the optical signal back to an electrical signal. By utilizing a separate preselected electronic control-signal fed to the conversion/tuning unit, the wavelength of the optical signal entering the fiber can be varied over a preselected wavelength band of interest. By selectively varying the wavelength of the optical signal, the electrical signal can be effectively and rapidly time delayed as desired in response to the electronic signal.

Descriptors :   *TUNING, *DISPERSING, *FIBER OPTICS, *SIGNALS, *ELECTRONICS, *FREQUENCY BANDS, CONVERSION, ELECTRICITY, OPTICS

Subject Categories : Optics
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE