To test the insertion loss of LC connectors, measurements can be made using a fiber optic power meter and a light source. The following are the test steps:
Prepare the test equipment: fiber optic power meter and light source. It is recommended to use highly accurate test equipment to ensure the accuracy of the test results.
Connect the fiber: Insert the LC connector to be tested into the test adapter (e.g. FC/PC or SC/PC adapter), and then connect the adapter to the fiber power meter and light source.
Calibrate the test equipment: Before testing, the fiber optic power meter and light source need to be calibrated to ensure their readings are accurate.
Start the test: Turn on the light source and set the output power, then read the reading of the fiber power meter. Record the reading and calculate the insertion loss, which is the difference between the output power and the input power. If multiple tests are required to obtain an average value, move the connector and retest.
Analyze the test results: Analyze the insertion loss test results and evaluate them against the test requirements and criteria.
It is important to note that when testing the insertion loss of LC connectors, attention also needs to be paid to the cleanliness of the test environment and the cleanliness of the connector. If there is dirt or contaminants on the connector surface, it may affect the test results. Therefore, the connector surface should be cleaned and the cleanliness of the test environment should be ensured prior to testing.
