AN ATTENUATOR FOR AN OPTICAL-FIBER TRANSMISSION-SYSTEM LINE CHANNEL

Optical attenuators designed to introduce a specific, controllable attenuation into an optical line channel are widely used in optical-fiber transmission systems [1, 2]. However, existing attenuators are not suitable from the viewpoint of reproducing the attenuation introduced into the channel. In this paper we consider new types of optical fiber aperture attenuators that have been developed and analyzed. Unlike previous devices, these attenuators are manufactured as elements without packages and are delivered in an AK-1 set. These attenuators are employed in ''List'' optical connectors and provide attenuation ranging from 2 to 16 dB in steps of 2 dB with an error of +/-10%.