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Crosstalk in Multiple-Beam Waveguides

1970; Institute of Electrical and Electronics Engineers; Volume: 49; Issue: 1 Linguagem: Inglês

10.1002/j.1538-7305.1970.tb01755.x

2376-7154

D. Gloge,

Advanced Fiber Laser Technologies

Crosstalk limits the number of communication channels which are spatially resolvable at the end of a beam waveguide. The main sources of crosstalk are scattering and distortion by the focusers. A careful study of high quality front surface mirrors led to the results of this paper. The best choice seems to be a periscopic guide made of dielectric mirrors when used with gaussian beams in a particular mode of multiple transmission. We give a closed description for the expected power profile of a gaussian beam that has passed such a guide and an approximate formula for the mutual crosstalk between several such beams.