Quality Control
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Testing Equipment
Multi-channel Tester
Optical Coupling Debugger
Polarity Tester
MPO Interferometer
Thermo-circulator Oven
ROHS Detector
IL & RL Tests
IL & RL tests are important during both manufacturing and installation. Fiber optic connectors should meet certain standards. For example, the TIA standard limits the maximum insertion loss to 0.75dB, which is considered the worst case. Most connectors in the market have losses between 0.3dB and 0.5dB, with low loss connectors ranging from 0.15dB to 0.2dB. Manufacturers use IL and RL testers to ensure these values are within normal limits. For Yingda jumpers, the IL is typically below 0.3dB unless specified otherwise.
Insertion Loss (IL) is the signal power loss when a device is inserted into the fiber optic line.
Return Loss (RL) is the signal power lost due to reflection back toward the light source.
End users can use the product specs to design fiber optic links and choose compatible devices. They can also check if the necessary testing tools, like visual fault locators and power meters, OTDR are available to help troubleshoot issues.
End-Face Inspection
End-face Inspection is important to ensure the connector end-face is free from dirt, scratches, or cracks. Contaminants can cause signal loss damage the connector, or reduce signal quality. Even tiny dusst particles can affect performance, so it’s important to cleanthe connectors before and after each use.
During manufacturing, we use a desktop microscope for inspection. On-site, fiber optic engineers can use a handheld microscope to check the end-face.
Before
After
3D Measurement Test
3D measurement is a key test to ensure fiber optic connectors perform well. It is used to measure the end-face of the fiber and control the dimensions. The three main properties tested are: the curvature radius, apex offset, and fiber height.
