Patent Number: 6,310,704

Title: Communication apparatus for transmitting and receiving signals over a fiber-optic waveguide using different frequency bands of light

Abstract: Apparatus for transmitting and receiving signals over a fiber-optic waveguide using different frequency bands of light, i.e. by wavelength division multiplexing. A plurality of signal couplers interfaces modulated signals onto the waveguide in separate optical frequency bands, and a plurality of signal probes forming a probe array at one or more places in the waveguide, receives the signals, which are subject to scrambling and distortion as a result of physical irregularities in the waveguide. A recovery system coupled to the signal probes effects recovery and separation of the received signals using cumulant computations based on cumulants of the fourth or higher even order.

Inventors: Dogan; Mithat Can (Sunnyvale, CA), Stearns; Stephen Deane (Los Altos, CA)

Assignee: TRW Inc.

International Classification: G01S 3/02 (20060101); G01S 3/74 (20060101); H04B 7/08 (20060101); H04J 014/02 (); H04B 010/12 ()

Expiration Date: 10/30/2018