Research on Calibration Method of Windless Optical Insertion/Return Loss Tester
In order to solve the calibration problem of windless optical insertion/return loss tester,the working principle of the tester is analyzed,and the method of using optical attenuator and standard fiber to generate standard return loss is analyzed,which solves the calibration problem of return loss.By using photoelectric and electro-optic converters to convert optical pulses into electrical pulses,the delay of optical pulses is achieved by setting the trigger delay,which solves the problem of length calibration.The proposed method is used to calibrate a typical windless optical insertion/return loss tester and the measurement results are analyzed.The analysis results show that the uncertainty of the standard device is three times higher than the maximum allowable error of the calibrated instrument,and the measurement range can cover the range of the instrument,which indicates that the method is suitable for the calibration of the windless optical insertion/return loss tester.
NETL
NSTL
万方数据
维普
