Accession Number : ADP007560

Title :   Four Wave Mixing Limitation in Multichannel Coherent Optical Communication,

Corporate Author : ROYAL INST OF TECH STOCKHOLM (SWEDEN) DEPT OF PHYSICS

Personal Author(s) : Nilsson, Johan ; Dado, Milan ; Jaskorzynska, Bozena

Report Date : 22 MAY 1992

Pagination or Media Count : 3

Abstract : Four-wave mixing (FWM) in a fiber is a nonlinear effect likely to impose severe restrictions on transmitted powers and channel spacing in optical frequency-division multiplexed (FDM) systems, hence limiting their information capacity. As a result of FWM waves at different frequencies can interact causing an inter-channel cross-talk. The efficiency of FWM is strongly dependent on the difference of phase velocities (phase-mismatch) between the interacting waves. Therefore, it will mainly play a role in dispersion shifted (DS) fibres and for densely spaced channels as are possible in coherent systems.

Descriptors :   *MULTICHANNEL COMMUNICATIONS, *OPTICAL COMMUNICATIONS, CHANNELS, DISPERSIONS, EFFICIENCY, FIBERS, PHASE, SYMPOSIA, CZECHOSLOVAKIA, FREQUENCY DIVISION MULTIPLEXING, CROSSTALK, SCHRODINGER EQUATION, NONLINEAR SYSTEMS, FOREIGN TECHNOLOGY.

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE