A Fiber Attenuator, or Optical Attenuator, is used to reduce the power level of the optical signal, belonging to the fiber optic cable, by up to 30dB. A Fiber Attenuator is commonly used in fiber optic communications to enhance the power level of a fiber cable through controlling the amount of signal loss that is passed by the signal. Fiber Optic Attenuators can also be employed on a more permanent basis in order to match the signal with a transmitter and receiver's specific power levels.
How does a Fiber Attenuator work?
The way a Fiber Attenuator works is by absorbing extra light within the signal, similar to the way sunglasses work by lessening the light beams that reach your eyes. It is crucial that the Optical Attenuator absorbs the light in order to avoid any unwanted back reflection, which could result in a loss in transmission. An easy way that this is accomplished within Fiber Optic Attenuators is by using fixed fibers or simply misaligned splices within a coupling device that a fiber optic cable could potentially be plugged into.
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