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1.Causes of Optical Return Loss Optical reflection may occur in any section or non-uniform refractive index distribution (n), such as Air Gap and misalignment. Return Loss is calculated as shown in the following figure, where Pr is the optical power reflected back from the original route and Pi is ... Read More
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Optical frequency domain reflection (OFDR) technology can be used to measure the fiber link, and the echo intensity curve with very high spatial resolution can be obtained. By determining the high reflection position at the tail end, the fiber length can be accurately measured. Because OFDR is a ... Read More
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