Patent ID: 7945159
Filing Date: 2011-05-17
Classification: G01M,H04B

Abstract:
1. A method for determining the bandwidth of at least one optical fiber, comprising: coupling, by an electronic component, light with a first optical power and a first modulation frequency into the optical fiber; measuring, by the electronic component, a first signal level as a function of the optical power of the light of the first modulation frequency passing through the optical fiber; coupling, by the electronic component, light with a second optical power and a second modulation frequency into the optical fiber; measuring, by the electronic component, a second signal level as a function of the optical power of the light of the second modulation frequency passing through the optical fiber; and determining, by the electronic component, the bandwidth of the optical fiber as a function of the first and second optical power and/or the measured first and second signal level while using a predetermined specification that describes the frequency-dependent attenuation response of the optical fiber; wherein the first and second modulation frequencies have substantially the same value.