Measurement and analysis of bending Loss of Mono-mode Fiber

The loss of optic fiber influences the transmission quality of communication,tested the bending loss of the single model optical fiber by using the operating wavelength 1310nm and 1550nm,the result shows that the bending loss assumes the shake change,and along with the bending radius increase,lose reduces,amplititude reduces,but along with wave length increase,lose increases,amplitude increase.explained the single-mode fiber bending shock loss by using the theory of fiber-coupled mode.It has a certain reference value for the practical application.