Fiber and integrated optics

Analysis of the characteristics of a radio signal at the output of a multimode interference-type fiber channel

A. N. Bratchikov, I. P. Glukhov


Abstract: An analysis is made of a theoretical model of an interference fiber channel for transmission of microwave signals. It is assumed that the channel consists of a multimode fiber waveguide with a step or graded refractive-index profile. A typical statistic of a longitudinal distribution of inhomogeneities is also assumed. Calculations are reported of the interference losses, the spectral profile of the output radio signal, the signal/noise ratio in the channel, and of the dependences of these parameters on: the type, diameter, and the length of the multimode fiber waveguide; the spectral width of the radiation source; the frequency offset between the interfering optical signals.

UDC: 681.7.068:621.396.2

PACS: 42.81.Qb, 84.40.Ua

Received: 14.03.1991

 English version: Soviet Journal of Quantum Electronics, 1992, 22:2, 182–187

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