منابع مشابه
Optical MEMS for telecoms
MEMS are finding an increasing number of applications in sensors, devices, and actuators1,2. MEMS are being applied to a wide range of systems. Progress is dramatic, especially in optical telecommunications3. These applications may be divided roughly into two classes: i) those requiring precise features for optical alignment, and ii) those involving the small moving optical parts necessary for ...
متن کاملMEMS for Optical Functionality
We discuss key features of MEMS technology which enable new functionalities of microphotonic devices, that can by summarized as “arrayability”, i.e. the ability to make massively parallel optical devices in a small form factor, “reconfigurability,” the ability to change optical properties spatially and temporaly, and “nano positioning,” the ability to position micro-scale devices with nanometer...
متن کاملDigital MEMS for Optical Switching
Over the last few years an amazing amount of interest has emerged for applications of micro electro-mechanical systems (MEMS) in telecommunications. Silicon-based optical MEMS have proven to be the technology of choice for lowcost scalable photonic applications because they allow mass manufacturing of highly accurate miniaturized parts, and use materials with excellent mechanical and electrical...
متن کاملRobust Lyapunov-based Control of MEMS Optical Switches
In this paper, a robust PID control scheme is proposed for Micro-Electro-Mechanical-Systems (MEMS) optical switches. The proposed approach is designed in a way which solves two challenging and important problems. The first one is successful reference tracking and the second is mitigating the system nonlinearities. The overall system composed of nonlinear MEMS dynamics and the PID controller is ...
متن کاملMEMS-based optical limiter.
We propose the design of an optical limiter based on a microelectromechanical systems deformable mirror. The design is based on aperturing focused light reflected out of an optically driven deformable mirror, deformed in a parabolic form. We derive an expression for the reflected light intensity, and we show that the reflected light saturates as a function of back illumination light intensity.
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ژورنال
عنوان ژورنال: Materials Today
سال: 2002
ISSN: 1369-7021
DOI: 10.1016/s1369-7021(02)00839-8