Attenuators are passive devices used to reduce the amplitude of a light signal without significantly changing the wave itself. This method of attenuation allows higher performance than fibre splices, which function by misdirecting rather than absorbing the light signal.Attenuators are often a requirement in applications where the receiver cannot accept the signal generated from a high-power light source. The plug type configuration makes it possible to use the attenuator directly on the ends of a patchcable and can as such be inserted into an adapter
