Types of optical cable connectors
1, SMA optical cable connector
SMA is the abbreviation of SubMiniatureA, and the ferrule diameter is 3. 14 mm ... This connector is composed of stainless steel structure and low-precision thread, which is mainly used for coupling high-power laser beam and large-core multimode optical fiber, and is suitable for laser beam transmission system in medical, biomedical and industrial applications. The typical insertion loss of SMA joints is greater than 1dB.
2.ST type optical cable connector
ST is the abbreviation of StraightTip, and the ferrule diameter is 2.5 mm ST connectors are widely used in outdoor and indoor optical fiber LAN. The high-precision ceramic ferrule makes it suitable for multimode and single-mode optical fibers. The coupling mode of turnbuckle (pushing the rotating locking joint) can prevent the coupling from being too tight and damaging the end face of optical fiber. The insertion loss of ST joint is less than 0.5dB, usually 0.3dB.
3.FC optical cable connector
FC is the abbreviation of FerruleConnector, and the ferrule diameter is 2.5 mm..FC optical fiber connector was first developed by NTT in Japan, which is mainly used in optical cable equipment, single-mode optical cable devices and high-speed optical fiber communication connection devices. This kind of high-precision ceramic ferrule optical cable connector has anti-rotation key, which reduces the freedom of rotation adjustment and the damage to the end face of optical fiber. The end face of FC connector optical cable is sensitive to dust, which is easy to produce Fresnel reflection and has large return loss. After that, the processing method of end pins is improved, which greatly improves the insertion loss and return loss performance. This optical cable connector also has multiple templates. The typical insertion loss of FC optical fiber connector is about 0.3dB.
4.SC type optical cable connector
SC is the abbreviation of SubscriberConnector, and the ferrule diameter is 2.5 mm SC optical cable connector is developed by NTT Company of Japan and widely used in single-mode optical cable communication, analog cable TV and other fields. The high-precision ceramic ferrule structure is helpful to the alignment of optical cables. The outer part of the optical cable joint is a rectangular structure, which is made of engineering plastics with high temperature resistance and oxidation resistance. The fastening mode is plug-in pin bolt type, and rotation is not required. This kind of optical cable connector has high installation density. The typical insertion loss of SC cable connector is about 0.3dB.
5.LC optical cable connector
LC is the abbreviation of LucentConnector, and the ferrule diameter is1.25mm. The LC optical cable connector is developed by Bell Research Institute. Using modular plug, the diameter of ferrule is half that of common FC and SC, which can improve the density of optical fiber connectors in optical cable distribution frame.
Optical fiber joint characteristics
1, safe and reliable: compared with traditional cleaning methods such as alcohol, ether, cotton balls or lens paper, the unique design structure and material selection make each cleaning achieve ideal results. No adverse effects on the environment and operators. Can effectively prevent the fire caused by alcohol and ethanol.
2, easy to use: you don't need to carry many other traditional items when working, just gently wipe, and the dust and grease at the optical fiber connection interface will be removed.
3. Economical and practical: the new design structure and patented product materials are adopted, which greatly reduces the production cost. Commodity prices are only a fraction of similar imported products. Each cleaning belt can clean more than 500 optical fiber interfaces, and the cleaning belt in the cleaner can be replaced.
4. Wide application: it can be used not only for optical experimental research units, but also for the construction and maintenance of indoor and outdoor optical fiber communication, as well as the quality assurance and matching of optical fiber equipment and components suppliers.
5. Strong applicability: it can be used for various types of optical fiber interfaces such as SC, FC, LC, ST, D4 and DIN.