ZOOM Beam expanders have been designed for use with various magnification. Both the fixed and variable ratio beam expanders have a focus adjustment.
It consists of adjustable divergence. These beam expanders are primarily intended for Nd:YAG, Green & UV lasers.
Specifications

• Variable magnifications
• Galilei Design
Adjustable divergence
• Damage threshold: 5J/cm2, 10ns, 1064nm Or 500MW/cm2, 1064nm

Mounting Version for Beam Expander
In correspond with our constant innovation and drive for excellent. We recently release our new beam expander mounting.
Our adjustable mount has been widely accepted model that able to compensate various degree of input beam.
Now with the new mount, the operation of adjusting the first lens is more convenient. The user only needs to turn the center part of the beam expander and the first lens will move accordingly along the optical axis with no rotation.

HEBX High Power Beam Expanders from CVI utilize a basic Galilean lens design in order to optimize both clear aperture and magnification ratio in as short a space as possible while also eliminating the risk of focused retro-reflections.
A Galilean design is preferred over a Keplerian beam expander design for high energy applications.
The compact, air-spaced design can be used for either beam expansion or in reverse for beam reduction and is manually adjustable, allowing for collimation at a variety of wavelengths.

Custom beam expanders for any UV to NIR wavelength are readily available using CVI's large selection of high quality fused silica singlet lenses. When ordering a non-standard size or expansion ratio, please specify the operating wavelength, magnification, input aperture diameter, and spatial allotments available in your system.

HEBX beam expanders can be post mounted via a ¼-20 thread located on the side of the housing.

• Ideal for laser processing applications
• Use in reverse as beam condenser
• All CVI low loss, AR coatings available
• How to clean your optics
• ROHS Compliant

BXUV High Power UV Beam Expanders from CVI feature a Gallilean design and low-loss antireflection coatings. Gallilean design is preferred over a Keplerian beam expander design for high energy applications.
CVI's large selection of laser quality fused silica lenses permits rapid delivery of custom UV beam expanders.
Please specify the operating wavelength, magnification, exit aperture diameter and required transmitted wavefront specification when contacting BFi OPTiLAS.
Also, indicate the maximum overall size that is available for the beam expander in your setup.

Mechanical fixturing through 1/4-20 thread on side of housing.
Custom expansion ratios and custom variable ratios are available.

• Galilean design
• Use in reverse as beam condenser
• Custom expansion ratios available
• Contact BFi OPTiLAS for wavelengths < 248nm
• All CVI low loss, AR coatings available

CWBX High Power CW Beam Expanders from CVI feature a Gallilean design and low-loss antireflection coatings.

Gallilean design is preferred over a Keplerian beam expander design for high power applications.
Mechanical fixturing through 1/4-20 thread on side of housing.

Custom expansion ratios and custom variable ratios are available.

• Galilean design
• Use in reverse as beam condenser
• Useful for any visible of near-IR laser system
• Easily mounted on ¼-20 post or base
• Fixed magnification ratios of 2X to 25X, non standard on request

Dual wavelength DWBXbeam expanders have the same focal length at 1064nm and 532 or 633nm.
Dual wavelength beam expanders collimate Nd: YAG and HeNe beams at the same lens spacing.
DWBX are corrected for spherical aberration at 1064nm and 532/633nm and for coma at 1064nm.
Because they are air-spaced, they can be used in high power Nd:YAG applications.
The coatings are designed to give low reflection losses.

The high power achromats offer high wavefront quality and achromatization at two useful laser wavelengths.
The inner surfaces are air-spaced and coated with high efficiency antireflection coatings and are suitable for high power applications.

• Air-spaced design for high energy applications
• Dual AR coated for Nd:YAG and alignment laser
• Corrected for spherical aberration and coma
• Better wavefront quality and achromatization than telescope objectives
• Galilean design

CVI's AP and APUV anamorphic prism pairs reshape the elliptical beam inherently produced by the asymmetric radiation pattern of diode and excimer lasers.

A near circular beam can be attained by properly aligning a pair of identical wedge prisms to the appropriate magnification ratio. CVI stocks mounted prism pairs with aspect ratios from 2:1 to 6:1 for one-dimensional (anamorphic) expansion or reduction of any laser beam.
A ¼-20 thread mounting hole is centered on the base.

The input face of each prism is aligned to near Brewster's angle so no AR coating is required if the input light is P-polarized or unpolarized.
Informing us of the input polarization when ordering allows the overall transmittance through the assembly to be optimized.

• Beam expansion, reduction or reshaping
• Advise input polarization when ordering to optimize overall transmittance
• Ideal for UV-NIR diode, excimer and Nd:YAG lasers