Laser beam profile shaping with interlaced binary diffraction graings
Abstract
A new CO2 laser beam profile shaper was designed and tested. With high-power efficiency, it transforms a fundamental mode laser beam profile into a flattop profile at a focal plane. The shaper uses an interlaced binary diffraction grating that modulates the E field both in phase and amplitude and generates an apodized and clipped sinc(x) distribution in the object plane.
- Publication:
-
Applied Optics
- Pub Date:
- September 1982
- DOI:
- 10.1364/AO.21.003209
- Bibcode:
- 1982ApOpt..21.3209V
- Keywords:
-
- Carbon Dioxide Lasers;
- Gratings (Spectra);
- Laser Beams;
- Power Efficiency;
- Radiation Distribution;
- Transmission Efficiency;
- Wave Diffraction;
- Coherent Light;
- Diffraction Propagation;
- Focal Plane Devices;
- High Power Lasers;
- Iterative Solution;
- Light Modulation;
- Performance Tests;
- Lasers and Masers;
- LIDAR;
- BEAMS;
- GRATINGS