Agilent Technologies, Inc.

Max Seminario

John Bernard Medberry

William P Kennedy

Amanda J Price

A measurement system is provided that is capable of analyzing light at the input of an optical waveguide of an optical device under test (DUT) and/or at the output of the waveguide, preferably at both. At the input of the waveguide, light having a particular polarization state generated by a polarization controller is output from the polarization controller and coupled into a proximal end of an optical fiber. The measurement system analyzes the polarization state of the light being launched from the opposite, or distal, end of the optical fiber into the waveguide input of the DUT to determine whether and by how much the polarization state of the light has been changed by the optical fiber. The polarization controller is altered, if necessary, to compensate for any changes in the polarization state caused by the optical fiber so that the polarization state of light being launched into the input of the optical fiber is known and is controllable. At the output of the waveguide, the measurement system analyzes the polarization state of the light output from the waveguide to determine any effect the waveguide of the DUT had on the polarization state of the light that propagated through the waveguide.

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Fort Collins, CO, United States of America

Max Seminario