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Novel type of fibre-optic ring resonator

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1 Author(s)
E. Meissner ; Siemens AG, Research Laboratories, München, West Germany

A fibre-optic ring resonator with highly wavelength-selective input reflection coefficient was realised by introducing a small local reflection in the ring. The influence of the local reflectivity on the input reflection coefficient is demonstrated. Maximum values for the input reflectivity and finesse are 55% and 10, respectively, using a fibre directional coupler (FDC) with a coupling ratio of 30%/70%.

Published in:

Electronics Letters  (Volume:23 ,  Issue: 13 )