Method and apparatus for controlling the size of a laser beam

Details Method and apparatus for controlling the size of a laser beam Method and apparatus for controlling the size of a laser beam

1997-12-30

1999-12-14

Bovernick, Rodney

Coherent light generators

Particular resonant cavity

Specified output coupling device

359698, H01S 308

Patent

active

060027061

ABSTRACT:
A method of controlling the size of a laser beam comprises the steps of generating the laser beam with a laser, focusing the laser beam, directing the laser beam to a target, directing a portion of the laser beam to an optical detector which generates a signal representative of a fluence distribution of the laser beam, and adjusting a focal point of the laser beam based on the measured fluence distribution to control the size of the laser beam on the target. The method can be carried out with an apparatus which comprises a beam splitter which divides the laser beam into a first portion and a second portion, a lens which focuses the first portion of the laser beam for incidence on a target, a detector which receives the second portion of the laser beam and which generates a signal representative of a spatial energy distribution of the laser beam, a digitizer which digitizes the signal from the detector, a data analyzer which receives the digitized signal from the digitizer and which calculates a fluence distribution of the laser beam, and a lens controller for adjusting a position of the lens with respect to the target based on the fluence distribution.

REFERENCES:
patent: 5091626 (1992-02-01), Lewis et al.
patent: 5127019 (1992-06-01), Epstein et al.
Eustace L. Dereniak and Devon G. Crowe, Optical Radiation Detectors, 140-143, 148-149 (1984), no month.
Warren J. Smith, Modern Optical Engineering, 360-363 (1990), No month.

Affiliated with

Also associated with

Rating

Method and apparatus for controlling the size of a laser beam does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for controlling the size of a laser beam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling the size of a laser beam will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-870411