1. Industrial processing field:
Laser cutting: By expanding and collimating the laser beam through a beam expander, a smaller divergence angle and a more uniform distribution of spot energy are obtained, thereby improving cutting accuracy and efficiency.
Laser welding: Improving the collimation characteristics of the beam, enabling the laser to focus more accurately on the welding point, reducing the heat affected zone, and improving the welding quality.
Laser marking: used to adjust the beam size and energy distribution to make the marking clearer and more uniform, suitable for marking metal and non-metal materials.
2. In the field of measurement and detection:
Laser ranging: By using a beam expander to improve the collimation of the laser, the laser can maintain a smaller divergence angle over longer distances, thereby improving the accuracy of ranging.
Optical detection: When used in conjunction with spatial filters, it can make the energy distribution of asymmetric light spots tend to be symmetrical and more uniform, which is used to detect the performance of optical components.
3. Research and experimental fields:
Optical experiment: used to adjust the diameter and divergence angle of the beam to meet different experimental requirements, such as obtaining a more uniform beam through a beam expander in optical interference experiments.
Beam shaping: Adjusting the beam to the desired shape and size, such as changing the national beam spot to an elliptical beam spot or altering the aspect ratio of a rectangular beam spot.
4. Acousto optic or electro-optic modulator: used to reduce the diameter of the beam to meet the beam requirements of the modulator.
5. Laser scanning and telemetry: used to expand the beam diameter, improve scanning range and accuracy.
