The optical fiber attenuator is composed of an elastic cylinder and a fiber coil winding on which the energy can be deformed and the external force disappears to restore the prototype. With the above structure, the fiber line can operate without damage, at the same time, it can guarantee the attenuation of the light by the continuous deformation of the elastic cylinder, Fiber Optic Attenuator and restore the Free State of the fiber line according to the recovery of the elastic cylinder shape, so as to achieve the continuous and controllable attenuation of the light and meet the needs of different occasions.
The effect of optical fiber attenuator is to reduce the light energy in the fiber core. The most common function of fiber attenuator is to balance the light energy between the multi-core system and reduce the saturation of the receiver, which may degrade the system performance because of high saturation. In the absorption test, the optical fiber attenuator can absorb excessive signals, because excessive signals may saturate the baseline measurement. The plug-type fiber attenuator is a male-female device designed for different connectors. Fiber Optic Attenuator The most common uses are DWDM and EDFA, which are used to reduce the energy of light signals.
Optical fiber attenuator It is a kind of optical passive device, which is used for adjusting optical power performance in optical communication system, calibrating calibration of optical fiber instrument and attenuation of fiber signal. Fiber Optic Attenuator The fabrication material of the fiber attenuator is a attenuation fiber doped with metal ions, which can adjust the optical power to the desired degree. Now let's get together and get a deeper understanding of the optical fiber Attenuator classification use principle.
Use of optical fiber attenuator
The optical fiber Attenuator test system has the characteristics of high attenuation precision, Fiber Optic Attenuator low additional loss and good stability.
Mainly applied in: optical fiber communication system; optical fiber CATV;
For the attenuation of input optical power, Fiber Optic Attenuator the distortion caused by optical receiver is avoided because of the high input power.
Classification of optical fiber Attenuator
Sort by interface
The types of ports can be categorized as follows:
SC Optical attenuator: Applied to the SC fiber interface, Fiber Optic Attenuator it looks very similar to the RJ-45 interface, but the SC interface appears to be more flat, the difference is still the inside of the tablet, if it is 8 fine copper touch piece, it is RJ-45 interface, if is a copper column is SC fiber interface.
LC Fiber Attenuator: Applied to LC Fiber interface, connecting SFP module connector, Fiber Optic Attenuator it is made of modular Jack (RJ) latch mechanism with convenient operation. (commonly used by routers)
FC Fiber Attenuator: Used in FC fiber interface, external strengthening method is the use of metal sets, fastening mode for turnbuckle. Generally used on ODF side (most of the wiring rack)
St Fiber Attenuator: Used in St Fiber interface, often used in fiber optic wiring frame, the shell is circular, fastening mode for turnbuckle. (For 10BASE-F connections, connectors are usually St types.) Used in fiber optic wiring rack)
Other classifications of optical fiber attenuator
On-line optical attenuator is a kind of precision device which can provide certain attenuation according to the engineering need. Products used in a variety of optical fiber transmission lines, Fiber Optic Attenuator the pre-quantitative intensity attenuation. The product also has two types: high return loss type FC SC ST plug socket structure, high loss type on-line cable structure.
Application: Optical fiber communication network, optical fiber data network, fiber CATV network, optical fiber testing system
Features: High attenuation precision, low additional loss, good stability, tunable optical fiber attenuator
Application: Optical fiber communication system, CATV, Fiber Optic Attenuator high-power optical device measurement
2, Fixed fiber
Uses: Optical fiber communication system, optical fiber CATV, high-power optical device measurement, the use of the implementation of the flange, you can use a variety of joint methods. FC, SC, ST, LC Optional. Easy installation and simple structure.
3, Yin and yang type
A male-female device for different connector design (LC/SC/FC/ST/MU) PCs, UPC or APC grinding (APC optional cone or step-shaped core)
Attenuation value: ~ 30dB
Wavelength: Single mode 1310um, 1550um, or double wavelength, Fiber Optic Attenuator multimode 850um or dual wavelength, with dust-proof cap.
The characteristics of the yin-yang type fiber attenuator:
The attenuation effect is achieved by adding metal ions, and high power light source;
Light weight, small size, high precision, good stability, a variety of forms, easy to use.
The application range of the Yin-yang type fiber attenuator: optical wiring frame, optical fiber network system, high speed optical fiber transmission system, CATV system, long distance trunk line dense wavelength division multiplexing (DWDM) system, Optical Division Multiplexer (OADM).