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Optical Performance Of Fiber Optic Connectors

Jul 28, 2017

Fiber optic connector is a commonly used connector products, used in optical fiber can be repeated plug-and-pull devices also known as fiber-optic movable joint, for high-capacity high-speed transmission system, also requires reflection small. What is the performance characteristic of fiber optic connectors? The following small series on the specific introduction, hope can help everyone.

The performance of optical fiber connectors, first of all optical performance, Fiber Optic Connector in addition to the optical fiber connector interchangeability, repeatability, tensile strength, temperature and the number of plug-and-pull.

(1) Optical properties: For optical fiber connectors, the optical performance requirements, Fiber Optic Connector mainly the insertion loss and return loss of the two basic parameters.

Insertion loss (Insertionloss) is the connection loss, which is the loss of the effective optical power of the link caused by the import of the connector. Fiber Optic Connector The smaller the insertion loss, the better the general requirements should not be greater than 0.5dB.

The Echo loss (Returnloss, Reflectionloss) is the ability of the connector to reflect the link light power, and its typical value should not be less than 25dB. Fiber Optic Connector The actual application of the connector, the needle surface through a special polishing treatment, can make the return loss of greater, generally not less than 45dB.

(2) interchangeability, repeatability

Fiber optic connectors are common passive devices, Fiber Optic Connector for the same type of fiber optic connectors, can be used in any combination, and can be reused for many times, the additional loss of imports is generally less than 0.2dB.

(3) Tensile strength

For a good optical fiber connector, the general requirements of its tensile strength should not be less than 90N.

(4) temperature

General requirements, fiber optic connectors must be at the -40oc~+70oc temperature can be used normally.

(5) Number of Inserts

The fiber optic connectors used now basically can be plugged l000 more than once.

The main use of fiber optic connectors is to achieve optical fiber continuity. Fiber optic connectors have been widely used in optical fiber communication systems, with many kinds and different structures. However, the basic structure of various types of optical fiber connectors is consistent, that is, Fiber Optic Connector most of the optical fiber connectors are generally high precision components (consisting of two pins and a total of three parts of a coupling tube) to achieve optical fiber alignment.

The performance of optical fiber connectors, first of all optical performance, in addition to the optical fiber connector interchangeability, repeatability, tensile strength, Fiber Optic Connector temperature and the number of plug-and-pull.

(1) Optical properties: For optical fiber connectors, the optical performance requirements, mainly the insertion loss and return loss of the two basic parameters.

Insertion loss (insertion loss) is the connection loss, which is the loss of the effective optical power of the link caused by the introduction of the connector. The smaller the insertion loss, the better the general requirements should not be greater than 0.5dB.

Return loss (return loss, reflection loss) is the ability of the connector to reflect the link light power, and its typical value should not be less than 25dB. The actual application of the connector, Fiber Optic Connector the needle surface through a special polishing treatment, can make the return loss of greater, generally not less than 45dB.

(2) interchangeability, repeatability

Fiber optic connectors are common passive devices, for the same type of fiber optic connectors, can be used in any combination, and can be reused for many times, the additional loss of imports is generally less than 0.2dB.

(3) Tensile strength

For a good optical fiber connector, Fiber Optic Connector the general requirements of its tensile strength should not be less than 90N.

(4) temperature

General requirements, fiber optic connectors must be -40oc ~ +70oc temperature under normal use.

(5) Number of Inserts

Currently used fiber connectors can generally be plugged l000 more than once.

Some common fiber optic connectors

According to different classification methods, fiber optic connectors can be divided into different types, according to the different transmission media can be divided into Single-mode fiber connectors and multimode fiber connectors; According to the structure of the different FC, SC, St, D4, Din, Biconic, MU, LC, MT, and other types; According to the connector's PIN end can be divided into FC, PC (UPC) and APC, according to the fiber core number and single core, multicore.