Optical fiber temperature cycling test

Changes in optical cable attenuation caused by temperature changes are usually caused by bending and stretching of the optical fiber, which is caused by the difference in the thermal expansion coefficient of the optical fiber and the thermal expansion coefficient of the optical cable strength member and sheath.
The purpose of the temperature cycle test for optical fiber products is to determine the adaptability of Class A1 multimode optical fiber and Class B single-mode optical fiber under environmental conditions of temperature changes that may occur during actual application, storage and/or transportation.
Zhongke Testing Reliability Experiment Center has environmental testing capabilities for various optical fibers and provides professional temperature cycle testing services for optical fiber products.

Class A1 multi-mode optical fiber, Class B single-mode optical fiber and other optical fiber products.

1. Test conditions
In accordance with the detailed specifications, the specimen is placed in the test chamber and subjected to temperature changes within the specified period.
2. Measure
Transmission characteristic measurement, mechanical performance measurement
3. Preprocess
If required, specimens shall be pretreated in accordance with detailed specifications.
4. Conditional adjustment
The test chamber and specimens should be stabilized under specified standard atmospheric conditions before making reference measurements. Adjust the temperature and humidity of the test chamber to the specified severity. Within a maximum period of 5 minutes, the average temperature rise rate should not exceed 1°C/min. Stabilize the temperature of the sample and maintain the temperature and humidity constant for a specified period.
5. Restore
If there are no special requirements, the sample should be recovered under standard atmospheric conditions for more than 12 hours, but not more than 48 hours. The detailed specification may require that measurements be taken during the restoration phase. If so, the detailed specification should specify when and what aspects of the measurements should be taken.

GB/T 15972.52 -2008 Optical fiber test method specification Part 52: Measurement methods and test procedures for environmental performance Temperature cycle
IEC60793-1-52: 2001 Optical fibers Part 1-52: Measurement methods and test procedures - Temperature cycling
GB/T 15972.10-2008 Specification for optical fiber test methods Part 10: Measurement methods and test procedures General
GB/T 15972.40-2008 Specification for test methods of optical fibers Part 40: Measurement methods and test procedures for transmission characteristics and optical characteristics Attenuation
GB/T 2423.22-2002 Environmental testing of electrical and electronic products Part 22: Test method Test N: Temperature change
GB/T 15972.32-2021 Specification for test methods of optical fibers Part 32: Measuring methods and test procedures for mechanical properties Coating peelability