Performance: The performance of fiber optic connectors, first of all, is optical performance. In addition, the interchangeability, repeatability, tensile strength, temperature and insertion times of fiber optic connectors should also be considered. 1. Optical performance: For optical performance of optical fiber connectors, insertion loss and echo loss are two basic parameters.
Insertion Loss refers to the loss of link effective optical power caused by the introduction of connectors. The smaller the insertion loss, the better, the general requirement should be no more than 0.5dB.
Return Loss (Reflection Loss) refers to the ability of the connector to suppress the link light power reflection, and its typical value should be no less than 25dB. The actual application of the connector, pin surface after special polishing treatment, can make the echo loss greater, generally no less than 45dB. 2. Exchangeability and repeatability : Fiber optic connector is a general passive device. For the same type of fiber optic connector, it can be combined arbitrarily and reused many times. Therefore, the additional loss introduced is generally less than 0.2dB. 3. Tensile Strength : For good optical fiber connectors, the tensile strength should be no less than 40N.
4, temperature : Generally, optical fiber connectors must be able to work normally at - 40 ~70 ~C.
5. Number of insertions : At present, optical fiber connectors can be plugged in and out more than 1000 times.