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

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