OTDR Launch Fiber.

Why do I need OTDR Launch Fiber?

• OTDR Launch Fiber is also known as " OTDR Dead Zone Eliminator" or "Dummy Spool Fiber"
  
• It is designed to assist in testing of fiber optics cable in using an OTDR.
  
• The OTDR Launch Fiber is  to help minimize the effect of the  OTDR Launch pulse on measurement uncertainty or called dead zone area.
  

• All OTDRs have a “dead zone”  that may extend a hundred meters from the OTDR in which accurate readings are unavailable.
  
• OTDR simply could not detect or locate faults or analyzed fiber optic under test within the dead zone region.
• To overcome this problem, a launch fiber is used to eliminate the dead zone thus giving the accurate measurement and readings of fiber optics link test.

• The preferable length of launch fiber optic is in the range between 500 meter - 2000 meters.
  
• As seen in the above diagram,  the launch fiber optics eliminates the dead zone region thus giving the OTDR true graphical presentation and measurement of fiber optic cable under test
• You can read HERE on launch fiber key features.