Polarization Maintaining Isolator (PMIS) allows light to travel through a fiber in one direction only. It minimizes back reflection and back scattering in the reverse direction for any state of polarization.
PMIS is a component which is characterized with an epoxy-free optical path whereby it provides wide bandwidth, high return loss, high extinction ratio, high isolation with low insertion loss over a wide wavelength range and excellent environmental stability and reliability. It is widely used in Polarization Maintaining Fiber Amplifiers, Fiber Lasers, high speed communication systems and instrumentation applications.