check the optical power

The value of the optical power will have the most obvious effect on the signal during transmission, and this optical power is also the easiest to test, and this value can be tested by the optical power.

 

Optical power – Use an optical power meter to test whether the port receives and emits light within the normal range and is stable. Note: The transmitted light power obtained from the short-distance test is equivalent to the received light power at the opposite end. The test value of the research and development stage is generally in accordance with the short-end test. The lowest sensitivity is obtained from the actual kilometer fiber plus light decay test.)

 

When the optical power of the optical module is bad, such as bright, small, no light, unstable optical power, small edge mode rejection ratio, etc., the performance of the optical module will be reduced, thus affecting the performance and distance of signal transmission.

 

If the emitted light power of the tested short end is less than -35dBm (including -35dBm), the default value is no light state. The received optical power on the market is generally higher than -35dbm, and the minimum of 100 megabit modules is also -34dbm.

 

The optical power test value is usually affected by some kind of fault in the cable equipment, such as poor connectors, polluted connections, and the use of optical fiber jumpers, resulting in excessive signal loss.

 

The above is an explanation of the inspection optical power knowledge brought by Shenzhen HDV Phoelectron Technology LTD. The module products produced by the company cover fiber module, Ethernet module, fiber transceiver module, fiber access module, SSFP optical module, SFP optical module and so on. The above module class products can provide support for different network scenarios. For the above products, it is paired with a professional and strong R & D team to provide technical support for customers, and a thoughtful and professional business team to provide quality service for customers in the early consultation and later work