What is a fiber attenuator?
The light traveling the optical fiber is the main carrier of information or data that needs to be transmitted along the fiber optical cable. In order to receive the useful data without the errors the system has to receive the light at an optimal optical attenuation level. Either too little or too much power will cause high bit error rates. The Bit Error Rate (also BER) is the number of bit errors per unit time. The bit error ratio is the number of bit errors divided by the total number of transferred bits during a studied time interval. Bit error ratio is a unitless performance measure, often expressed as a percentage. Too much power, and the receiver amplifier saturates, too little and noise becomes a problem as it interferes with the signal.
The power reduction is done by such means as absorption, reflection, diffusion, scattering, deflection, diffraction, and dispersion, etc. Optical attenuators usually work by absorbing the light, like sunglasses absorb extra light energy.
ATTENUATORS TYPES Female to male plug style optical attenuator (MU, SC, FC, ST, LC) Flange style optical fiber attenuator Adjustable fiber optical attenuator (FC style) Attenuation scale:0~30dB IN-Line style fiber optical attenuator.
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