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This work proposes some effective methods to compensate the unevenly distributed illumination problem so that standard image processing methods can efficiently be used to detect the defects of the fiber connectors.
This paper describes add-on filtering technology for an L/U-band extended optical fiber line testing system. We have developed a 15-nm wideband and 45-dB high cutoff chirped FBG filter embedded in a plug-adapter connector.
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