This video demonstrates an easy, fast, and accurate way to measure the polarization extinction ratio (PER) of a bare polarization maintaining (PM) fiber. In the demonstration, measurements do not require in-line polarizers and fiber splicing as in conventional methods.
Instead, users simply cleave the fiber, install bare fiber adapters on both ends of the fiber, and plug the adapters into the FC connectors on the front panel of CUBE-PM100(Linear polarization maximizer) ) and CUBE-ER100 (Polarization extinction ratio meter). CUBE-PM100 converts the polarization state of the input broadband light source into a linear polarization state through a polarizer (PER is over 50dB). Then it couples the linearly polarized light into the PM fiber under test. After pressing the AUTO button, the built-in polarizer of the CUBE-PM100 will rotate until the PER at the PM fiber output reaches its maximum value. The demonstration showed the PER of the PM fiber under test is over 46dB.
If you have any questions or comments, please contact jchen@inlinephotonics.com or info@inlinephotonics.com.
