How does fiber optic attenuator work? As we all know, too little or too little optical power will cause equipment errors. Too much power will saturate the receiving amplifier, while too little power will interfere with the signal and cause noise problems. An optical fiber attenuator is an optical device that can be used to attenuate the input power to avoid distortion of the optical receiver due to excessive power. The optical fiber attenuator reduces the optical power through the absorption, reflection, diffusion, scattering, deflection, diffraction and dispersion. How to reduce the power light level? The fiber attenuator is set in a working wavelength range that can absorb light energy. Within this range, it will not reflect light and reduce unnecessary echo reflection. In this way, the optical power attenuation effect is achieved. Usually, the optical attenuator is made by air isolation technology, displacement dislocation technology, attenuation fiber technology, absorption glass method, etc. The normally attenuation range of the optical attenuator is 0~65dB. The attenuation power of the fixed attenuators on the market is between 1 and 30dB. Fixed fiber attenuator is a type of fiber attenuator, which fixes the attenuation power at an attenuation value. It is commonly used in telecommunication networks, fiber optic test equipment, local area networks (LAN) and cable television (CATV) systems.
There is also a variable optical attenuator. The attenuation level of the variable attenuator can be adjusted, for example, from 0.5 dB to 20 dB, or even 50 dB. Some