High Extinction Ratio Polarization Maintaining Fiber Optic Patchcords are available with FC/PC or FC/APC terminated connectors. Hybrid terminated connectors enable users to adapt FC/PC and FC/APC patchcords for compatibility with existing fiber assemblies. When used at the fiber specific alignment wavelength, these fiber patchcords provide extinction ratios between 30 – 33 dB to better maintain input polarization. High Extinction Ratio Polarization Maintaining Fiber Optic Patchcords are ideal for applications including telecommunications, interferometry, and quantum key distribution. Each connector is engraved with the fiber type for easy integration and identification.