Method and apparatus for obtaining measurements in a plurality of light waveguides

In a method for measuring a plurality of light waveguides arranged side-by-side comprising coupling light into the infeed section of each of the waveguides, decoupling light from an outfeed section of each of the waveguides, and evaluating the decoupled light, the improvements comprising the step of coupling including creating a light spot of a transmission radiation field, moving said light spot in a chronological succession across the infeed sections of the light waveguides extending side-by-side to couple the light therein., and said step of decoupling including acquiring reception field radiations from each of the light waveguides from the outfeed sections in their chronological distribution relative to one another, said step of evaluating including evaluating the reception radiation fields in their chronological distribution, said method obtaining at least one reference measurement by sweeping the light spot along the infeed sections of the waveguides, obtaining the chronological distribution of the reception radiation fields, evaluating this chronological distribution to determine the topical position of the waveguides being measured as well as the light power conducted in each of the waveguides, adjusting the infeed time and transmission power of the transmission radiation fields during its motion across the infeed sections of the light waveguides with respect to the determined variables with regard to power and position of each respective waveguide.

In an apparatus for measurements of a plurality of light waveguides having an optical transmission/coupling means for coupling light to light waveguides, an optical receiving means for receiving light decoupled therefrom, said optical receiving means including at least one reception means for receiving light coupled from the waveguides and transferring the received light to an evaluation means for evaluating the light, the improvements comprising said transmission/coupling means being constructed to form a light spot of the transmission radiation field at a transmission side for movement in a chronological succession across infeed sections of the aligned waveguides to be measured, said reception means of the optical receiver means at a receptive side being aligned and constructed for acquiring a reception radiation field of the light waveguides to be measured in the chronological distribution allocated to the infeed of the transmission side, said reception means generating reception signals and supplying the reception signals to the evaluation means for evaluating, and drive means between the optical transmission/coupling means and the reception means for controlling the light spot of the transmission radiation field on the transmission side for coupling light into the infeed section of each waveguide to be measured in response to the evaluation of the chronological distribution of the reception radiation fields on the reception side decoupled from the waveguide to be measured.