TECHSPEC® Canopus Reflective Beam Expanders
138 +44 (0) 1904 788600 | Edmund Optics® lenses mirrors windows filters polarizers & waveplates prisms beamsplitters laser optic assemblies
• Broadband Performance for UV, Visible, and Infrared Applications from 250nm to 10μm
• λ/10 or λ/8 Wavefront Error
• Easy Mounting with Integrated Alignment Features
Substrate: Aluminum
Surface Roughness (Å): <50 RMS
Surface Quality: 40-20
Entrance Aperture (mm): 4
Coating Specification:
UV Enhanced Aluminum: Ravg >89% @ 250 - 450nm
Ravg >85% @ 250 - 700nm
Protected Aluminum: Ravg >85% @ 400 - 700nm
Ravg >70% @ 700 - 2000nm
Ravg >97% @ 2 - 12μm
Bare Gold: Ravg >94% @ 700 - 800nm
Ravg >97% @ 800 - 2000nm
Ravg >98% @ 2 - 12μm
Ultrafast Enhanced Silver: Ravg >99% @ 600 - 1000nm
Rs >99% @ 540 - 1000nm
Rp >98.5% @ 730 - 870nm
GDD (typical): 0 ±20fs2 @ 600 - 1050nm
Wavefront Error, P-V:
2X and 3X: ≤λ/10 on-axis for a 1mm Dia. Input Beam
5X: ≤λ/8 on-axis for a 1mm Dia. Input Beam
Expansion
Power
Exit
Aperture (mm)
Dimensions
(mm)
UV Enhanced Aluminum
Stock No. Price
2X 8 71 L x 25.4 W x 38.1 H #37-185 £398.65
3X 12 72.6 L x 25.4 W x 38.1 H #37-186 £398.65
5X 20 78.3 L x 25.4 W x 38.1 H #37-188 £398.65
Call For Custom Capabilities and OEM Quantity Pricing
R (%)
95
90
85
80
75
38.1
25.4
Enhanced Aluminum
70
250 300 350 400 450 500 550 600 650
(nm)
Enhanced Aluminum
Length
Ø7.1 25.4
7.0
Exit
Aperture
Entrance
Aperture
UV Enhanced
Aluminum
Units: mm
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