ST Single-mode Attenuator

Fiber Optic Attenuator

         The intensity of the optical signal received by the optical receiving device needs to be within a certain range,

and the optical power cannot be too strong or too weak, otherwise the life of the device will be shortened or the

device will not work normally. The Fiber Optic Attenuator is an optical passive device that can be used to reduce the

energy of the optical signal and attenuate the input optical power to avoid distortion of the optical receiver due to the

super-strong input optical power.  

        The fiber attenuator reduces the optical power through the absorption, reflection, diffusion, scattering, deflection,

diffraction, and dispersion of the optical signal. For example, for the absorption of optical signals, set the optical fiber

attenuator to a working wavelength range that can absorb light energy. In this range, it does not reflect light and

reduces unnecessary echo reflection. In this way, the optical power attenuation effect is achieved. . Generally use air

isolation technology, displacement dislocation technology, attenuation fiber technology, absorption glass method

and other technologies to make optical attenuators.  

        The attenuation range of the optical attenuator is 0-65dB. The attenuation power of fixed fiber attenuators on the

market is between 1-30dB. Fixed fiber attenuator is a type of fiber attenuator, which fixes the attenuation power at an

attenuation value. Generally used in telecommunications networks, optical fiber test equipment, local area networks

(LAN) and cable television (CATV) systems.