Reduction of MEMS mirror edge diffraction in a wavelength...

Details Reduction of MEMS mirror edge diffraction in a wavelength... Reduction of MEMS mirror edge diffraction in a wavelength...

2005-12-22

2008-03-18

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

Switch

C385S015000, C385S016000, C385S017000

Reexamination Certificate

active

07346234

ABSTRACT:
Effects of diffraction of a spectral beam from an edge of the micromirrors are reduced in order to optimize the passband in a wavelength selective switch. The effects of diffraction on the pass band may be reduced by using rotation of the micromirror about both the attenuation axis and the switching axis to achieve the desired level of attenuation. Peak coupling can be attained by dithering the micromirror about an axis tangent to a contour of constant attenuation using simultaneous rotation about the switching and attenuation axes.

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