Can you widen a laser beam?
There is no maximum limit to the width because it is possible to widen a narrow beam using lenses. There is a limit of how narrow a laser beam can be made.
How does a laser beam expander work?
A beam expander will increase the input laser beam by a specific expansion power while decreasing the divergence by the same expansion power, resulting in a smaller collimated beam at a large distance.
What is a cO2 laser beam expander?
A device that take a collimated beam of light and expand its size. Composed with two lens of different curvature to obtain good effect. Different times of expander for different requirments. Widely used for cO2 laser Marking machines.
How thick can a laser beam be?
The narrowest part of the focused beam is generally less than 0.0125 inches (0.32 mm) in diameter. Depending upon material thickness, kerf widths as small as 0.004 inches (0.10 mm) are possible.
Why do we need beam expanders?
A laser beam expander is often a crucial element in the success of individual systems. For high-powered sources, the addition of a beam expander can provide a controlled reduction of power density. Reducing divergence can assist in alignment and reduce the spot size at the final focus at the beam.
Can you deflect laser beam?
The only method to deflect a laser beam is via a mirror.
What are the applications that may need a beam expander?
Beam expanders are used in many applications such as laser ranging, laser illumination, interferometry, etc. In systems with a long beam path, they are used to keep the beam collimated. They may be used to change the focus spot size for a particular focusing lens.
Which property of light is used for amplification of laser?
A laser consists of a gain medium, a mechanism to energize it, and something to provide optical feedback. The gain medium is a material with properties that allow it to amplify light by way of stimulated emission. Light of a specific wavelength that passes through the gain medium is amplified (increases in power).
What is a laser beam expander?
Our Laser Beam Expanders provide a low cost means of focusing and shaping laser beams with a high degree of accuracy. Expansion ratios from 3x to 30x Galilean optical design Economically priced beam expansion Ideal for use with HeNe lasers Wavefront distortion less than λ/4 Transmission greater than 95%
How do I create a beam expander using Lens Data Editor?
Begin with a blank Lens Data Editor with the Stop set to surface 1. Enter the KBX022 biconvex, 12.7 mm diameter, 12.7 mm focal length lens onto surface 2 using the Lens Catalog. This is the entry lens for the beam expander. Enter KPX229 plano-convex, 76.2 mm diameter, 200mm focal length lens into surface 4 using the Lens Catalog.
What is a Galilean beam expander?
These Galilean beam expanders incorporate the highly regarded Tropel optical designs with improved adjustability and mounting. They are ideal for applications in which a small spot must be formed at some distance from the laser, or where the collimation range must be extended for illumination, or for alignment of distant objects.
Which beam expanders can be used with HeNe lasers?
These beam expanders feature 1-32 mounting thread and can be conveniently attached to most HeNe lasers using R-30646R adapter. They are also equipped with precision beam centering adjustments to compensate for slight decentration of the entering laser beam (except for the T81-3X).