Correction of angular deviation and radial drift of laser beams

Details Correction of angular deviation and radial drift of laser beams Correction of angular deviation and radial drift of laser beams

2005-02-08

2005-02-08

Dang, Hung Xuan (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

C359S641000, C359S288000, C359S554000

Reexamination Certificate

active

06853489

ABSTRACT:
A laser correction element for the correction of angular deviation due to pointing instability and radial displacement due to thermal drift, including one or more of an angular deviation non-symmetric optical element for redirecting a beam axis of a laser beam through a first corrective angle dependent upon the angle of incidence of the laser beam on the angular deviation element to be parallel with an optimum centerline and a radial displacement non-symmetric optical element for redirecting a beam axis of a laser beam through a second corrective angle dependent upon a radial displacement of the beam axis. A collimating non-symmetric optical element may redirect the laser beam through a third corrective angle dependent on radial displacement of the beam axis from a centerline and angle of incidence on the collimating element.

REFERENCES:
patent: 5486694 (1996-01-01), Harris
patent: 6075650 (2000-06-01), Morris et al.

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