A large-aperture, piston-tip-tilt micromirror for optical phase array applications
2008
This paper reports the design, fabrication and characterization of a 4x4 micromirror array consisting of piston-tip-tilt electrothermal MEMS mirrors. Each mirror has an optical aperture size of 0.5x0.5 mm 2 . Both tip and tilt angles of over plusmn30deg are obtained at less than 5 Vdc, and the piston displacement reaches 215 mum at 4 Vdc. Two-dimensional scanning was demonstrated. Thermal analysis and transient response were also reported.
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