The optical parameter measurement equipment and the multiple port optical device quality grasp method which use the concept of optical 'S' parameter

摘要

Management expedient of quality grasp process, the test light information of one or more (the alignment possible laser) source and the optical fiber in addition it includes various optical components, the optical circuit which forms inter- ferro- metric optical arrangement and the optical connector, photoelectric type interface, it consists of the digital electronic circuit and the capture electronic circuit for digital processing of optical detector, the analog electronic circuit and the signal, the test light information and the reference beam signal pass the plural distances of each length, this length being identical, even when is possible, the light information of the arm of inter- ferro- meter to differ, is modulated in phase and/or frequencyThe optical parameter measurement equipment and the multiple port optical device quality grasp method which use the concept of optical S parameter. This invention has the expedient which cuts off the influence of the vibration and temperature fluctuation. This invention the suffering test equipment by optical S parameter (DUT) is something which describes the light information transfer between the respective ports, each " Sxy " parameter is expressed Jones type (Jones queue) and/or Mueller type (Mueller queue) by. From queue of S parameter, bandwidth and phase, delay time, color dispersion, second next dispersed and reflectance ratio, reflection coefficient, from the y " port to " x " port, and transmissivity of its opposite direction, " x " port, and coefficient of permeability of its opposite direction, variation of insertion loss, polarized light dependence loss and polarized light type (DGD/PMD), the second next DGD and the like, all optical qualities of DUT derive from the y " port to. Selective figure Figure 1