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

Broadband NIR 1X - 3X Research-Grade Variable Beam Expander

Research-Grade Variable Beam Expanders

Research-Grade Variable Beam Expanders 532nm 1X - 3X, #87-561 1064nm 2X - 8X, #87-568 Broadband VIS 2X - 8X, #87-569 +1
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Stock #87-564
S$1,897.20
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Qty 1-4
S$1,897.20
Qty 5+
S$1,674.00
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Design Wavelength DWL (nm):
Broadband
Expansion Power:
1X - 3X
Coating:
BBAR (750-1100nm)
Style:
Variable Magnification
Wavelength Range (nm):
750 - 1100
Entrance Aperture (mm):
10
Exit Aperture (mm):
30
Transmitted Wavefront, P-V:
<λ/5 @ 785nm for Input Beam ≤5mm
Mounting Threads:
Input: Male C-Thread (1" x 32 TPI)
Output: Male T-Thread (M42 x 0.75)
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Housing Diameter (mm):
58.2
Length (mm):
172.3
Angle of Incidence (°):
0 ±0.06
Transmission (%):
>95 @ DWL
Coating Specification:
Ravg <0.5% @ 780 - 950nm
Ravg <1.0% @ 750 - 1100nm
Damage Threshold, Pulsed:
5 J/cm2 @ 785nm, 10ns, 20Hz
Type:
Beam Expander
Divergence Adjustment:
Non-Rotating Optics
Weight (g):
577

Regulatory Compliance

RoHS:

Product Family Description

TECHSPEC® Research-Grade Variable Beam Expanders (RVBX) are ideal for high power laser applications where magnification changes may be required, such as prototyping or R&D. TECHSPEC Research-Grade Variable Beam Expanders feature λ/4 transmitted wavefront, Galilean designs, and high laser damage threshold AR coatings to ensure maximum transmittance while minimizing ghost reflections. Additionally, these beam expanders use internal translation and focusing mechanisms to continuously adjust magnification and laser divergence without affecting overall housing length. This compact design removes the need to make system accommodations for changes in length and eases system integration.

TECHSPEC Research-Grade Variable Beam Expanders can be used to determine a system’s required beam magnification in the prototyping phase of development. TECHSPEC® Draconis® Broadband Beam Expanders are available for production or OEM implementation. Please contact our Sales Department for custom magnification requirements.

Laser Optics

Technical Information

2X-8X Research-Grade Variable Beam Expanders - Specifications
Design Wavelength Stock No. Fixed Overall Length A (mm) Mounting Length E (mm) Rotating Numeric Ring Length F (mm) Rotating Alpha Ring Length G (mm)
355nm #87-566 169.7 35.9 90.7 19.4
532nm #87-567 169.3 31.5 70.4 43.7
Broadband VIS (633nm) #87-569 169.3 31.5 70.4 43.7
Broadband NIR (785nm) #87-570 169.3 31.5 70.4 43.7
1064nm #87-568 169.3 31.5 70.4 43.7
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