Routine inspection methods of optical fiber amplifiers
The optical amplifier, the panel display and the actual output are synchronized. If the panel display is normal, the output of the optical amplifier is normal. If the optical power of the test optical amplifier is decreased or insufficient in this case, the most likely possibilities are as follows:
The optical power meter is inaccurate. The domestic optical power meter can only test the equipment with small optical power output, and cannot test the high-power output EDFA. The optical power meter for testing the optical amplifier must be imported from the original, and the inaccurate instrument cannot be used as a standard. To use.
The flange of the output port is damaged, which is less likely.
The user improper use, plugging and unplugging the pigtail while the machine is working, will burn the pigtail head of the optical amplifier output, and cause the output power of the optical amplifier to drop. If this happens, just re-splice the output connector of the optical amplifier.
The quality of the pigtail used by the user is too poor, the core is too long, and the output connector of the optical amplifier is scratched after the pigtail is inserted. This phenomenon is that the first test is good, and the optical power drops when the second test is inserted again. To solve this problem, just re-splice the output connector of the optical amplifier.
The wavelength of the light source is wrong. If the wavelength of the 1550nm optical transmitter is deviated, the output optical power of the optical amplifier will be insufficient, and the panel display will also be small. The optical power of the input optical amplifier is small. If it is lower than the standard value, the optical power may decrease, and the panel display will also decrease.