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《Electronic Measurement Technology》 2008-09
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Calibration of optical return-loss (backreflection) meter

Zhan Zhiqiang Xia Ming Gao Jianqiang Sun Wen (Division of Electric&Electronic Metrological Technology,Shanghai Institute of Measurement and Testing Technology,Shanghai 201203)  
Optical return-loss is an important specification for optical devices,the measurement of optical return-loss is by optical return-loss meter,but there is no verification regulation or calibration specification released now.The calibration items and methods is introduced in this paper,the items including the calibration of inner optical source,optical power meter,the calibrator of optical return-loss,the accuracy of optical return loss measurement etc.the introduction of calibration methods for return-loss measurement accuracy is emphasized,the optical return-loss passive simulation and the optical return-loss active simulation,and the standard instruments used to calibrate the optical return-loss for both methods and the calculation formulas and evaluation of uncertainty is introduced too.By the calibration of hundreds of optical return-loss meter proved that the methods are accurate and feasible,meets the demands of our customers.
【CateGory Index】: TN929.1
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