Optical waveguides – With optical coupler – Switch
Reexamination Certificate
2006-02-14
2006-02-14
Kim, Ellen E. (Department: 2874)
Optical waveguides
With optical coupler
Switch
C385S016000, C349S177000, C349S188000
Reexamination Certificate
active
06999649
ABSTRACT:
Technology for constructing a single layer polarization insensitive electrically switchable liquid crystal mirror is disclosed which serves as the basic element for constructing an optical router switch array in free space as well as waveguide format. The optical router switch array includes a plurality of switchable liquid crystal mirror elements having liquid crystal arranged in stack cells and/or in a waveguide configuration. The resulted optical router switches are motionless, polarization insensitive, stable within the operational spectral region, and stable versus temperature. The invention also includes methods for manufacturing a single switchable liquid crystal mirror element and the optical switch arrays. The same technology is further extended to constructing an electrically tunable optical filter that is motionless and polarization insensitive.
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Chen Zhan
Li Le
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