Performance of fiber optic connectors


    Optical fiber connector performance is first of all optical performance, in addition to consider the optical fiber connector interchangeability, repeatability, tensile strength, temperature and the number of plugging and so on.
    (1) optical performance: for the optical performance of optical fiber connector, the two basic parameters are insertion loss and return loss.
Insertion loss (Insertion Loss), i.e., loss of connection, refers to the loss of the effective optical power of the link caused by the introduction of the connector. Insertion loss as small as possible, the general requirements should be no greater than 0.5dB.
    Reflection Loss (Return Loss) refers to the ability of the connector to suppress the optical power of the link, and its typical value should be no less than 25dB. The actual application of connectors, pin surface has been specially polished treatment, you can make the return loss greater, generally not less than 45dB.
    (2) interchangeability and repeatability;
    Optical fiber connector is a passive device for general, fiber optic connectors of the same type, can generally be used in any combination, and can be used repeatedly, resulting in additional loss of import generally within the range less than 0.2dB.
   (3) tensile strength
   For well made fiber optic connectors, the tensile strength is generally required to be no less than 90N.
   (4) temperature;
   General requirements, fiber connector must be in -40oC ~ +70oC temperature can be used normally.
   (5) the number of turns
   Currently used fiber optic connector can plug more than l000 times.

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