Title :
A study of electronic interface for MEMS Variable Optical Attenuator (VOA)
Author :
Cai, H. ; Chan, C.W. ; Thian, C.S. ; Zhang, X.M. ; Lu, C. ; Liu, A.Q.
Author_Institution :
Inst. for Infocomm. Res., Singapore, Singapore
Abstract :
A digital electronics control system design for a Microelectromechanical System (MEMS) Variable Optical Attenuator (VOA) is studied. This MEMS VOA is based on applying voltage to position a moving micro-mirror to control the optical power levels. The digital control system reported in this paper is implemented to operate the MEMS VOA. Here, by use of the proportional integral (PI) controlled system, each VOA module implements the functions as an optical power regulator or optical power equalizer. Moreover, this control system ensures the device with leading performance, stability, reliability and speed, but also fast dynamic response. A more attraction of this electronic control system is its programmability.
Keywords :
PI control; digital control; equalisers; micromechanical devices; micromirrors; optical attenuators; optical communication equipment; programmable controllers; reliability; MEMS variable optical attenuator; digital electronics control system design; electronic interface; fast dynamic response; microelectromechanical system variable optical attenuator; moving micromirror; optical power equalizer; optical power levels; optical power regulator; proportional integral controlled system; reliability; stability; Control systems; Digital control; Electric variables control; Microelectromechanical systems; Micromechanical devices; Optical attenuators; Optical control; Optical variables control; Pi control; Voltage control;
Conference_Titel :
Design, Test, Integration and Packaging of MEMS/MOEMS 2003. Symposium on
Print_ISBN :
0-7803-7066-X
DOI :
10.1109/DTIP.2003.1287011
