High Power Polarization Maintaining Fiber Optical Isolator, is an in-line micro-optic component with high optical power, allows light to transmit only in the forward direction and block in the reverse direction. DK Photonics offers broad range of polarization maintaining components like optical isolator, patch cords, and connectors designed to resolve polarization problems, which are becoming increasingly important in today's higher speed and more complex mesh optical networks. Know more about Polarization maintaining optical isolator For more info visit: http://www.dkphotonics.com/product/PM-Isolator.html