Coherent light generators – Particular beam control device – Control of pulse characteristics
Reexamination Certificate
2004-12-15
2009-02-03
Kim, Ahshik (Department: 2876)
Coherent light generators
Particular beam control device
Control of pulse characteristics
C372S026000, C372S057000, C235S454000
Reexamination Certificate
active
07486707
ABSTRACT:
The invention relates to an optical delay module for lengthening the propagation path of a light beam comprises a first spherical mirror and a second spherical mirror, the first spherical mirror and the second spherical mirror having equal radii of curvature, the first and the second mirror being arranged on a common axis of symmetry with concave sides of the first and second mirrors being situated opposite one another at a distance from one another which corresponds to the radii of curvature of the first and second mirrors. The module also includes a coupling-in area for coupling the light beam into a space between the first and second mirrors and a coupling-out area for coupling the light beam out of the space between the first and second mirrors. The propagation path of the light beam between the coupling-in area and the coupling-out area corresponding at least approximately to quadruple the mirror distance, at least one optical arrangement arranged between the first and second mirrors, the optical arrangement being arranged to transfer the light beam between the first and second mirrors in such a way that the propagation path of the light beam without masking out of beam parts between the coupling-in area and the coupling-out area corresponds approximately to 2N times the mirror distance, where N is an integer >2.
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Herriott, Donald R et al. Folded Optical Delay Lines, Applied Optics, vol. 4, No. 8, Aug. 1965, 7 Pages.
Herkommer Alois
Muenz Holger
Carl Zeiss Laser Optics GmbH
Kim Ahshik
St. Onge Steward Johnston & Reens LLC
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