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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

1.5X, 355nm Vega® Nd:YAG Laser Line Beam Expander

TECHSPEC® Vega™ Laser Line Beam Expanders

TECHSPEC® Vega™ Laser Line Beam Expanders

TECHSPEC® Vega™ Laser Line Beam Expanders TECHSPEC® Vega™ Laser Line Beam Expanders
Stock #12-873 3-4 days
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Angle of Incidence (°):
Laser V-Coat (355nm)
Design Wavelength DWL (nm):
Entrance Aperture (mm):
Exit Aperture (mm):
Expansion Power:
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Length (mm):
Mounting Threads:
Input: Male M30 x 1
Output: Female M27 x 0.5
Transmission (%):
>99 (nominal)
Beam Expander
Weight (g):
Housing Diameter (mm):
Transmitted Wavefront, P-V:
<λ/10 for 4mm input beam (nominal, λ = DWL)
Coating Specification:
Rabs <0.25% @ 355nm
Wavelength Range (nm):
340 - 380
Fixed Magnification
Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.
2.5 J/cm2 @ 355nm, 10ns, 20Hz
Divergence Adjustment:
Rotating Optics

Regulatory Compliance

Certificate of Conformance:

Product Family Description

  • AR Coated for Laser Wavelengths: 266nm, 355nm, 405nm, 532nm, 1064nm, and 1940nm
  • Fixed Magnifications Available from 1.5X to 20X
  • Divergence Adjustable through Rotating Optical Design

TECHSPEC® Vega® Laser Line Beam Expanders are designed for demanding laser applications including laser materials processing, medical, and research. These compact beam expanders are optimized at common laser wavelengths, including Nd:YAG wavelengths, for high performance transmitted wavefront, with designs achieving λ/10 transmitted wavefront error. To ensure compatibility with high power lasers, these beam expanders are designed to prevent ghost images from focusing on internal surfaces. TECHSPEC Vega Laser Line Beam Expanders easily mount with M30 x 1 threading and provide excellent value both for single unit purchases as well as volume integration.

Note: The length of these beam expanders will change upon divergence adjustment, typically by 1 to 2mm from the specified length.

TECHSPEC® Vega® Broadband Beam Expanders are also available. For more cost sensitive applications, Edmund Optics also offers TECHSPEC Scorpii® Nd:YAG Beam Expanders. For HeNe laser applications, TECHSPEC Arcturus® HeNe Beam Expanders are available. For higher precision applications where sliding optics are necessary, please see our TECHSPEC Draconis® Nd:YAG Laser Line Beam Expanders or TECHSPEC Draconis® Broadband Beam Expanders. For broadband or ultrafast applications, TECHSPEC Canopus® Reflective Beam Expanders are available.

To learn more about the difference between the 2µm and 2µm low OH- content beam expanders, along with the different types of fused silica, review our UV vs. IR Grade Fused Silica application note.

532nm versions are compatible with popular 515nm laser applications, and 1064nm versions are ideal for use with laser applications at 1030nm, 1070nm, and 1080nm.

Fixed Laser Beam Expanders