USE OF SYNTHESIZED HOLOGRAMS FOR SELECTIVE MODE EXCITATION IN GRADIENT INDEX FIBRES. ANALYSIS OF SENSITIVITY TO RADIAL DISPLACEMENT OF LAUNCH BEAMS

V. P. Garichev, M. A. Golub, S. V. Karpeyev, S. G. Krivoshlykov, I. N. Sisakyan, V. A. Soifer, G. V. Uvarov

Abstract:
Synthesized holograms were used for selective excitation of the lower order modes in multimode graded index fibres. The coefficients of mode excitation were measured as functions of the radial displacement of the launch beam.

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