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What is the Minimum Bend Radius of the Fiber?

 

In general, the optical fiber can withstand a tighter bend radius (R) before a permanent damage or breaking occurs, if its outer diameter is smaller. For example;

 

125 µm (cladding)/195 µm (ORMOCER®-coated)             

          R > 6 mm to keep the surface strain level below 1%

80 µm (cladding)/125 µm (ORMOCER®-coated)        

          R > 4 mm to keep the surface strain level below 1%

 

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