Smart adjustable optical attenuator

Abstract

Adjustable optical attenuator (AOA) based on magnetoreological fluid (MRF) , which possesses SMART properties, can be used to adjust the power level of the optical signal when adjusting and measuring the parameters of various optoelectronic devices, optical communication networks, optical information storage and processing systems and as well as for decoupling the laser diode from the next device which it interacts. MRF consists of carbonyl iron powder and polyethylsiloxane oil.