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Femtoline Broadband Laser Beamsplitters

Femtoline Broadband Laser Beamsplitters

Femtoline Broadband Laser Beamsplitters coated @ 720-880 nm or 750-850 nm. Laser damage threshold: >50 mJ/cm2, 50 fsec pulse, 800 nm typical.

from 140 $
delivery Estimated delivery time: 4 - 5 days
Qty discount: 5-9 pcs. of the same item - 10% OFF! 10+ pcs. 15% OFF!
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Products
Specifications
Brochures
Description
Size
Wavelength
Reflection
Transmission
Polarization
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Wavelength range - 720-880 nm, designed for S-polarization
Code Material Size Wavelength Reflection Transmission Polarization AOI Price Delivery Add to cart
042-7708SB UVFS Ø25.4 x 3 mm 720-880 nm 8±1 % 92±1 % S-pol 45° 140 $ 4 - 5 days
042-7720SB UVFS Ø25.4 x 3 mm 720-880 nm 20±5 % 80±5 % S-pol 45° 234 $ 4 - 5 days
042-7730SB UVFS Ø25.4 x 3 mm 720-880 nm 30±5 % 70±5 % S-pol 45° 234 $ 4 - 5 days
042-7740SB UVFS Ø25.4x3 mm 720-880 nm 40±5 % 60±5 % S-pol 45° 234 $ 4 - 5 days
i 042-7750SB UVFS Ø25.4 x 3 mm 720-880 nm 50±5 % 50±5 % S-pol 45° 234 $ 4 - 5 days
042-7760SB UVFS Ø25.4 x 3 mm 720-880 nm 60±5 % 40±5 % S-pol 45° 241 $ 4 - 5 days
i 042-7770SB UVFS Ø25.4 x 3 mm 720-880 nm 70±5 % 30±5 % S-pol 45° 247 $ 4 - 5 days
042-7780SB UVFS Ø25.4 x 3 mm 720-880 nm 80±5 % 20±5 % S-pol 45° 247 $ 4 - 5 days
042-7790SB UVFS Ø25.4 x 3 mm 720-880 nm 90±3 % 10±3 % S-pol 45° 272 $ 4 - 5 days
i 042-7795SB UVFS Ø25.4 x 3 mm 720-880 nm 95±2 % 5±2 % S-pol 45° 285 $ 4 - 5 days
045-7708SB UVFS Ø50.8 x 6 mm 720-880 nm 8±1 % 92±1 % S-pol 45° 234 $ 4 - 5 days
045-7720SB UVFS Ø50.8 x 6 mm 720-880 nm 20±5 % 80±5 % S-pol 45° 430 $ Request
045-7730SB UVFS Ø50.8 x 6 mm 720-880 nm 30±5 % 70±5 % S-pol 45° 430 $ 4 - 5 days
045-7740SB UVFS Ø50.8 x 6 mm 720-880 nm 40±5 % 60±5 % S-pol 45° 430 $ 4 - 5 days
i 045-7750SB UVFS Ø50.8 x 6 mm 720-880 nm 50±5 % 50±5 % S-pol 45° 430 $ 4 - 5 days
045-7760SB UVFS Ø50.8 x 6 mm 720-880 nm 60±5 % 40±5 % S-pol 45° 456 $ 4 - 5 days
i 045-7770SB UVFS Ø50.8 x 6 mm 720-880 nm 70±5 % 30±5 % S-pol 45° 494 $ 4 - 5 days
045-7780SB UVFS Ø50.8 x 6 mm 720-880 nm 80±5 % 20±5 % S-pol 45° 494 $ 4 - 5 days
045-7790SB UVFS Ø50.8 x 6 mm 720-880 nm 90±3 % 10±3 % S-pol 45° 557 $ 4 - 5 days
i 045-7795SB UVFS Ø50.8 x 6 mm 720-880 nm 95±2 % 5±2 % S-pol 45° 595 $ 4 - 5 days
Wavelength range - 750-850 nm, designed for P-polarization
Code Material Size Wavelength Reflection Transmission Polarization AOI Price Delivery Add to cart
042-7710PB UVFS Ø25.4 x 3 mm 750-850 nm 10±2 % 90±2 % P-pol 45° 234 $ Request
042-7720PB UVFS Ø25.4 x 3 mm 750-850 nm 20±5 % 80±5 % P-pol 45° 234 $ 4 - 5 days
042-7725PB UVFS Ø25.4 x 3 mm 750-850 nm 25±5 % 75±5 % P-pol 45° 234 $ 4 - 5 days
042-7730PB UVFS Ø25.4 x 3 mm 750-850 nm 30±5 % 70±5 % P-pol 45° 234 $ 4 - 5 days
042-7740PB UVFS Ø25.4 x 3 mm 750-850 nm 40±5 % 60±5 % P-pol 45° 234 $ Request
042-7750PB UVFS Ø25.4 x 3 mm 750-850 nm 50±5 % 50±5 % P-pol 45° 234 $ 4 - 5 days
042-7760PB UVFS Ø25.4 x 3 mm 750-850 nm 60±5 % 40±5 % P-pol 45° 241 $ 4 - 5 days
042-7770PB UVFS Ø25.4 x 3 mm 750-850 nm 70±5 % 30±5 % P-pol 45° 247 $ 4 - 5 days
042-7775PB UVFS Ø25.4 x 3 mm 750-850 nm 75±5 % 25±5 % P-pol 45° 247 $ 4 - 5 days
042-7780PB UVFS Ø25.4 x 3 mm 750-850 nm 80±5 % 20±5 % P-pol 45° 247 $ 4 - 5 days
042-7785PB UVFS Ø25.4 x 3 mm 750-850 nm 85±3 % 15±3 % P-pol 45° 260 $ 4 - 5 days
042-7790PB UVFS Ø25.4 x 3 mm 750-850 nm 90±3 % 10±3 % P-pol 45° 272 $ 4 - 5 days
042-7795PB UVFS Ø25.4 x 3 mm 750-850 nm 95±2 % 5±2 % P-pol 45° 285 $ 4 - 5 days
045-7710PB UVFS Ø50.8 x 6 mm 750-850 nm 10±2 % 90±2 % P-pol 45° 430 $ 4 - 5 days
045-7720PB UVFS Ø50.8 x 6 mm 750-850 nm 20±5 % 80±5 % P-pol 45° 430 $ 4 - 5 days
045-7725PB UVFS Ø50.8 x 6 mm 750-850 nm 25±5 % 75±5 % P-pol 45° 430 $ 4 - 5 days
045-7730PB UVFS Ø50.8 x 6 mm 750-850 nm 30±5 % 70±5 % P-pol 45° 430 $ 4 - 5 days
045-7740PB UVFS Ø50.8 x 6 mm 750-850 nm 40±5 % 60±5 % P-pol 45° 430 $ 4 - 5 days
045-7750PB UVFS Ø50.8 x 6 mm 750-850 nm 50±5 % 50±5 % P-pol 45° 430 $ 4 - 5 days
045-7760PB UVFS Ø50.8 x 6 mm 750-850 nm 60±5 % 40±5 % P-pol 45° 456 $ 4 - 5 days
045-7770PB UVFS Ø50.8 x 6 mm 750-850 nm 70±5 % 30±5 % P-pol 45° 494 $ 4 - 5 days
045-7775PB UVFS Ø50.8 x 6 mm 750-850 nm 75±5 % 25±3 % P-pol 45° 494 $ 4 - 5 days
045-7780PB UVFS Ø50.8 x 6 mm 750-850 nm 80±5 % 20±5 % P-pol 45° 494 $ Request
045-7785PB UVFS Ø50.8 x 6 mm 750-850 nm 85±3 % 15±3 % P-pol 45° 531 $ 4 - 5 days
045-7790PB UVFS Ø50.8 x 6 mm 750-850 nm 90±3 % 10±3 % P-pol 45° 557 $ 4 - 5 days
045-7795PB UVFS Ø50.8 x 6 mm 750-850 nm 95±2 % 5±2 % P-pol 45° 595 $ 4 - 5 days
Substrate
Material
UV Grade Fused Silica
S1 Surface Flatness
λ/10 at 633 nm
S1 Surface Quality
20-10 scratch & dig (MIL-PRF-13830B)
S2 Surface Flatness λ/10 at 633 nm
S2 Surface Quality
20-10 scratch & dig (MIL-PRF-13830B)
Diameter Tolerance
+0.00 mm-0.12 mm
Thickness Tolerance
±0.25
Parallelism 30 arcsec
Chamfer
0.3 mm at 45° typical

 

Coating
Technology Electron beam multilayer dielectric
Adhesion and Durability Per MIL-C-675A. Insoluble in lab solvents
Clear Aperture Exceeds central 85% of diameter
Angle of Incidence 
45±3°
Back Side Antireflection Coated
R<0.5%
Laser Damage Threshold
>50 mJ/cm2, 50 fsec pulse, 800 nm typical
EKSMA Optics Femtoline Broadband Laser Beamsplitters
116.14 kB 		download PDF
  • Coated @ 720-880 nm or 750-850 nm
  • Designed for S or P polarization
  • Laser damage threshold: >50 mJ/cm2, 50 fsec pulse, 800 nm typical

The beamsplitter splits average polarized laser beam into two beams separated by 90° from each other.

The standard substrate thickness is 3 mm. If you need thinner substrate, please choose from Precision Thin Round Windows.

Related products

Flipping Mirror/Beamsplitter Mount 840-0155
Adapter for Beamsplitter at 45 deg 840-0116
Large Aperture Optical Mount 840-0150-T
Elliptical Windows
Universal Mirror Mount/Platform 840-0140-T
Products
Information
Eksma Optics
Contacts
© 2025 EKSMA Optics, UAB. All rights reserved.
Femtoline Broadband Laser Beamsplitters
Rs=50%@720-880 nm, AOI=45 deg; Rp=50%@750-850 nm, AOI=45 deg.
Femtoline Broadband Laser Beamsplitters
Low Group Delay Dispersion dependence Rs=50%@720-880 nm, AOI=45 deg; Rp=50%@750-850 nm, AOI=45 deg
Femtoline Broadband Laser Beamsplitters_1
Rs=50%@720-880 nm, AOI=45 deg; Rp=50%@750-850 nm, AOI=45 deg.
Femtoline Broadband Laser Beamsplitters_1
042-7750SB. Rs=50±5%@720-880 nm, AOI=45 deg.
Femtoline Broadband Laser Beamsplitters_1
042-7770SB. Rs=70±5%@720-880 nm AOI=45 deg
Femtoline Broadband Laser Beamsplitters_1
042-7795SB. Rs=95±2%@720-880 nm, AOI=45 deg
Femtoline Broadband Laser Beamsplitters_1
Rs=50±5%@720-880 nm, AOI=45 deg.
Femtoline Broadband Laser Beamsplitters_1
Rs=70±5%@720-880 nm AOI=45 deg
Femtoline Broadband Laser Beamsplitters_1
Rs=95±2%@720-880 nm, AOI=45 deg
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