Fiber attenuator as a light passive device for optical communication system which debug optical power performance, debugging fiber optic instrument calibration correction, fiber signal attenuation. The product is made of attenuating optical fibers with metal ions, Fiber Optic Attenuator which adjusts the optical power to the desired level.
First, according to the type of port can be divided into the following categories:
SC fiber attenuator: used in SC fiber interface, it looks very similar with the RJ-45 interface, but the SC interface is more flat, the obvious difference is inside the contact, Fiber Optic Attenuator if it is 8 fine copper contacts, then Is RJ-45 interface, if it is a copper column is SC fiber interface.
LC fiber attenuator: used in LC fiber interface, connected to the SFP module connector, which uses a convenient modular jack (RJ) latch mechanism made. (Commonly used by routers)
FC fiber attenuator: used in FC fiber interface, external reinforcement is the use of metal sets, fastening for the screw buckle. Generally used in the ODF side (the most used on the patch panel)
ST fiber attenuator: used in ST fiber interface, commonly used in fiber patch panels, shell was round, fastening way for the screw buckle. (For 10Base-F connections, the connector is usually of type ST. Commonly used in fiber patch panels)
Fiber optic attenuator is a kind of optical device which can reduce the energy of optical signal. For the attenuation of the input optical power, Fiber Optic Attenuator to avoid the input optical power is too strong and make the optical receiver distortion.
Optical attenuator is a kind of very important fiber optic passive device which has appeared with the development of optical communication industry. Optical fiber attenuator is an optical device which can reduce the energy of optical signal. For the attenuation of the input optical power, to avoid the input power caused by the super-light receiver distortion.
Fiber optic attenuator is mainly used in: optical fiber communication network, Fiber Optic Attenuator light data network, fiber CATV network.
Fiber attenuator test system features: high attenuation accuracy, additional loss is low, good stability.
Fiber optic attenuator production principle: (1) air isolation technology: light transmission in the fiber by the total reflection of the law constraints, can not be scattered out to maintain the strength of the relatively stable. And once it is separated from the fiber, Fiber Optic Attenuator in the fiber and fiber to join the air between the interval, the light will be scattered out, causing light attenuation. (2) displacement dislocation technology: This method is the two fiber core of the micro-shift misalignment, so as to achieve the effect of power loss. (3) attenuation of fiber technology: according to the metal ions on the absorption of light, developed a mixed metal ions attenuation fiber will attenuate the fiber into the ceramic ferrule, after a special process, can be made of yin and yang fixed attenuator. (4) absorption of glass: the optical polishing of the neutral absorption of glass can also be applied to the production of optical attenuator.