Scalable free-space optical switches based on MEMS vertical mirrors

2002 ◽  
Author(s):  
Weijun Wang ◽  
Rongming Lin
Keyword(s):  
Free Space ◽  
Optical Switches ◽  
Free Space Optical

Micromirror With Multiple Digitized Angles for Free Space Optical Crossconnects

2003 ◽  
Author(s):  
Jianglong Zhang ◽  
Y. C. Lee
Keyword(s):  
Material Properties ◽  
Free Space ◽  
Bottom Electrode ◽  
Beam Steering ◽  
Optical Switches ◽  
Design Parameters ◽  
Mirror Surface ◽  
Free Space Optical ◽  
Control Electronics ◽  
Digital Levels

To eliminate or lower the power consumption and complexity of the control electronics that limit the applications of analog optical switches, beam steering devices and other micromirrors, this paper presents micromirrors with multiple digitized angles for free space optical crossconnects. Device requirements defined by a dual-lens and dual-micromirror array system are used to guide the designs of the micromirrors. The micromirrors with multiple digitized angles are designed using MUMPs, a MEMS foundry process, and simulated by full coupled-domain FEM/BEM. The effects of the design parameters on the digitized angles are analyzed. These parameters are flexure configuration, connector beam configuration, plate configuration and bottom electrode configuration. With these effects known, a micromirror is successfully designed for the desired optical system. Such a mirror’s repeatability is expected to be about 0.06°, which is obtained by a preliminary experimental study of a similar device. The repeatability of the digital levels highly depends on the initial gap between the mirror surface and the bottom electrode, flexure configuration, connector beam configuration and material properties.

New Class of Rearrangeable Nonblocking Multicast Free-Space Optical Switches

2016 ◽  
Vol 8 (8) ◽  
pp. 569 ◽  
Author(s):  
Abdelbaset S. Hamza ◽  
Jitender S. Deogun ◽  
Dennis R. Alexander
Keyword(s):  
Free Space ◽  
Optical Switches ◽  
Free Space Optical ◽  
New Class

Free-space optical switches based on polarization

2001 ◽  
Author(s):  
Qiaoyan Hu ◽  
Mingcui Cao ◽  
Fengguang Luo ◽  
Wei Tan
Keyword(s):  
Free Space ◽  
Optical Switches ◽  
Free Space Optical
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