Optical: systems and elements – Light interference
Reexamination Certificate
2007-03-20
2007-03-20
Robinson, Mark A. (Department: 2872)
Optical: systems and elements
Light interference
C359S615000, C398S081000
Reexamination Certificate
active
10913360
ABSTRACT:
Various configurations of a virtually imaged phased array (VIPA) generator in combination with a mirror to compensate for chromatic dispersion. A VIPA generator produces a light traveling from the VIPA generator. In some embodiments, a variable curvature mirror is positioned to reflect the light back to the VIPA generator. A rotation axis around which the mirror is rotated and a translation path for the rotation axis are provided, to change the curvature of the mirror where the output light is reflected. In other embodiments, a plurality of mirrors have different surface curvatures. A holder has a rotation axis and holds the plurality of mirrors equidistantly from the rotation axis. The holder is rotatable around the rotation axis to bring a different, respective mirror in position to reflect light produced by a VIPA generator back to the VIPA generator. In other embodiments, a rotating mirror is rotatable about a rotation axis to reflect light produced by a VIPA generator to a respective fixed mirror. In still other embodiments, an off-axis parabolic mirror is rotatable about a rotation axis to reflect light produced by a VIPA generator to a respective fixed mirror.
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Cao Simon Xiaofan
Shirasaki Masataka
Amari Alessandro
Fujitsu Limited
Robinson Mark A.
Staas & Halsey , LLP
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