Accession Number : ADP005219

Title :   Fiber Optic Ring-Lan Design with Improved Reliability through the Use of Four-Port Couplers,

Corporate Author : KABELMETAL ELECTRO G M B H HANOVER (GERMANY F R)

Personal Author(s) : Schoenfeld,Hans

Report Date : NOV 1986

Pagination or Media Count : 6

Abstract : Fiber optic ring-LANs are sensitive to failures in the cable or in the equipment. One can prevent network breakdown due to equipment failure if optical four-port couplers are provided as a bypass. Also, by taking advantage of state-of-the art digital signal processing techniques with high dynamic range, unwanted disturbing signals can be suppressed as long as a minimum S/N ratio is maintained. Since the worst case amplitude of the disturbing signal can be calculated, this required S/N ratio results in a reasonably low value.

Descriptors :   *FIBER OPTICS, *WAVEGUIDE COUPLERS, COMMUNICATIONS NETWORKS, RELIABILITY

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE