Lawrence Livermore National Security, LLC

Metal Improvement Company, LLC

Randall L Hurd

Scott N Fochs

Lloyd A Hackel

C Brent Dane

Fritz B Harris, Jr

Mark D Rotter

Jon Rankin

Edward W H Lao

Kai N LaFortune

Jon E Rankin

Brent C Dane

A beam delivery technology for high power laser systems, like laser peening systems, for work pieces which may have compound curvatures, includes placing an optical assembly having a receiving optic, beam formatting optics and a scanner mounted thereon, in a position to receive laser pulses from a laser source and within an operating range of the process area. Polarized laser pulses are delivered to the receiving optic while the position of the optical assembly remains unchanged. The pulses proceed through the beam formatting optics to the scanner, and are direct to respective impact areas having nominal shapes and locations on the work piece. The scanning process includes for each laser pulse, setting direction, divergence, polarization, rotation and aspect ratio of the laser pulses output from the scanner, to control the polarization, shape and location on respective impact areas.

Flexible beam delivery system for high power laser systems

Wavefront control techniques are provided for the alignment and performance optimization of optical devices. A Shack-Hartmann wavefront sensor can be used to measure the wavefront distortion and a control system generates feedback error signal to optics inside the device to correct the wavefront. The system can be calibrated with a low-average-power probe laser. An optical element is provided to couple the optical device to a diagnostic/control package in a way that optimizes both the output power of the optical device and the coupling of the probe light into the diagnostics.

Dichroic beamsplitter for high energy laser diagnostics

Growing community of inventors

Tracy, CA, United States of America

Randall L Hurd