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

3X, NIR Draconis® Broadband Beam Expander

TECHSPEC® Draconis™ Broadband Beam Expanders

TECHSPEC® Draconis™ Broadband Beam Expanders
TECHSPEC® Draconis™ Broadband Beam Expanders
Stock #59-134
Qty 1-4
Qty 5+
Volume Pricing
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Wavelength Range (nm):
750 - 1100
Expansion Power:
Entrance Aperture (mm):
Exit Aperture (mm):
Transmitted Wavefront, P-V:
λ/10 @ 1mm Input Beam, λ/4 @ 4mm Input Beam
Mounting Threads:
Input: Male C-Thread (1” x 32 TPI)
Output: Male T2-Thread (M42 x 0.75)
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Housing Diameter (mm):
Length (mm):
Angle of Incidence (°):
Focus Range:
1.5m - ∞
BBAR (750-1100nm)
Coating Specification:
Ravg <0.5% @ 780 - 950nm
Ravg <1.0% @ 750 - 1100nm
Fixed Magnification
Beam Expander
Design Wavelength DWL (nm):
Divergence Adjustment:
Non-Rotating Optics

Regulatory Compliance


Product Family Description

  • AR Coated for Broadband Tunable Laser Sources
  • Fixed Magnifications Available from 3X to 10X
  • Divergence Adjustable through Non-Rotating Optical Design for Reduced Beam Wander

TECHSPEC® Draconis® Broadband Beam Expanders feature high performance optical designs that have been optimized and tested for broadband use. These beam expanders eliminate the need for critical alignment due to their diffraction-limited performance over large input beam diameters and wide acceptance angles. Their broadband designs enable use with multiple laser lines or tunable lasers, reducing the number of beam expanders required in optical systems. Additionally, the optical design ensures internal focusing of ghost images is not present, which allows compatibility with high power lasers. Mechanical adjustment through a sliding optical design corrects errors in divergence or collimation. TECHSPEC Draconis Broadband Beam Expanders’ C and T input/output mounting threads are compatible with Edmund Optics’ line of threaded mounting components, or mounting can be achieved using an optional mounting clamp.

TECHSPEC Draconis® Nd:YAG Laser Line 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 applications where rotating optics are acceptable, the TECHSPEC Vega™ Laser Line Beam Expanders and TECHSPEC Vega™ Broadband Beam Expanders are available. For broadband or ultrafast applications, TECHSPEC Canopus™ Reflective Beam Expanders are available.

Fixed Laser Beam Expanders