30:70 (R:T) Non-Polarizing Beamsplitter Cubes

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Product Description
  • Substrate material: N-BK7
  • Splitting ratio (R:T): 30:70
  • Operating wavelength: 400 nm-700 nm, 700 nm-1100 nm, 1100 nm-1600 nm
  • Insensitive to beamsplitting polarization
The LBTEK Non-Polarizing Beamsplitter Cube consists of two right-angle prisms. The prism marked by a black dot on top indicates that its hypotenuse surface is coated with a dielectric non-polarizing beamsplitter coating. Any of the four sides of the cube can serve as the incident surface, splitting the transmitted and reflected light according to the specified ratio. For optimal beamsplitting performance, it is recommended that the incident light enters from the right-angle side of the prism coated with the non-polarizing beamsplitter coating. LBTEK offers non-polarizing beamsplitter cubes made of N-BK7 material in various sizes, with three anti-reflection coating options of 400 nm-700 nm, 700 nm-1100 nm, and 1100 nm-1600 nm. Our optical components are finely processed and undergo strict quality control to ensure that LBTEK provides the users with high-quality optical products at reasonable prices.
Attribute
Optical component materialN-BK7
Dimensional tolerance+0.0/-0.2 mm
Anti-reflective coatingRavg<0.5% (6° incidence angle)
Splitting ratio30:70(R:T)
Surface finish (scratches/pits)40/20
Exit angleTransmission: 0°±5 arcmin; Reflection: 90°±5 arcmin;
30:70 (R:T) Non-Polarizing Beamsplitter Cubes, 30 mm Coaxial Cube Mounts
  • Splitting ratio: 30:70 (R:T)
  • Insensitive to beamsplitting polarization
  • M3 threaded holes on the side, compatible with the 30 mm coaxial systems
  • Four SM1 internal threads on the side, compatible with SM1 lens tubes for installation

LBTEK integrates the 25.4 mm non-polarizing beamsplitter cube in a cube housing compatible  with the 30 mm coaxial systems. A reference line is engraved on the top of the housing to indicate optical path direction. The housing features M3 threaded holes on the sides, and ensures compatibility with the 30 mm coaxial systems via the Ø6 mm coaxial system mounting posts. Additionally, the housing provides four SM1 internal threaded ports on the sides, allowing simultaneous compatibility with 25.4 mm lens tubes. Moreover, the coaxial cube is equipped with M4 threaded holes at the bottom for mounting posts.

The LBTEK 30 mm Coaxial Beamsplitter Cube is fixed with the post

Product Model
Operating Wavelength
Size
Unit Price
Compare
Lead Time
MBS1437-C 1100 nm-1600 nm25.4 mm×25.4 mm×25.4 mm$240.048 weeks
MBS1437-B 700 nm-1100 nm25.4 mm×25.4 mm×25.4 mm$240.048 weeks
MBS1437-A 400 nm-700 nm25.4 mm×25.4 mm×25.4 mm$255.868 weeks
30:70 (R:T) Non-Polarizing Beamsplitter Cubes, Unmounted
  • Splitting ratio: 30:70 (R:T)
  • Insensitive to beamsplitting polarization
  • Various sizes available

LBTEK offers non-polarizing beamsplitter cubes in five sizes: 5 mm, 10 mm, 12.7 mm, 20 mm, and 25.4 mm. The 25.4 mm beamsplitter cube is available in two versions: one with the mounted coaxial cube and one without. Any of the four sides of the cube can serve as the incident surface, splitting the transmitted and reflected light according to the specified splitting ratio. For optimal beamsplitting performance, it is recommended that the incident light enters from the right-angle side of the prism coated with the non-polarizing beamsplitter coating.

The LBTEK BS mounted in a beamsplitter cube

Product Model
Operating Wavelength
Size
Unit Price
Compare
Lead Time
BS1437-C 1100 nm-1600 nm25.4 mm×25.4 mm×25.4 mm$208.927 weeks
BS1437-B 700 nm-1100 nm25.4 mm×25.4 mm×25.4 mm$213.118 weeks
BS1337-A 400 nm-700 nm20.0 mm×20.0 mm×20.0 mm$192.198 weeks
BS1237-A 400 nm-700 nm12.7 mm×12.7 mm×12.7 mm$175.598 weeks
BS1337-C 1100 nm-1600 nm20.0 mm×20.0 mm×20.0 mm$192.198 weeks
BS1237-C 1100 nm-1600 nm12.7 mm×12.7 mm×12.7 mm$175.598 weeks
BS1137-C 1100 nm-1600 nm10.0 mm×10.0 mm×10.0 mm$171.48 weeks
BS1037-C 1100 nm-1600 nm5.0 mm×5.0 mm×5.0 mm$150.888 weeks
BS1337-B 700 nm-1100 nm20.0 mm×20.0 mm×20.0 mm$192.198 weeks
BS1237-B 700 nm-1100 nm12.7 mm×12.7 mm×12.7 mm$175.598 weeks
BS1137-B 700 nm-1100 nm10.0 mm×10.0 mm×10.0 mm$171.48 weeks
BS1037-B 700 nm-1100 nm5.0 mm×5.0 mm×5.0 mm$150.888 weeks
BS1037-A 400 nm-700 nm5.0 mm×5.0 mm×5.0 mm$148.138 weeks
BS1437-A 400 nm-700 nm25.4 mm×25.4 mm×25.4 mm$217.428 weeks
30:70 (R:T) Non-Polarizing Beamsplitter Cubes, 16 mm Coaxial Cube Mounts
  • Splitting ratio: 30:70 (R:T)
  • Insensitive to beamsplitting polarization
  • M3 threaded holes on the side, compatible with the 16 mm coaxial systems
  • Four SM05 internal threads on the side, compatible with SM05 lens tubes for installation

LBTEK integrates the 20.0 mm non-polarizing beamsplitter cube in a cube housing compatible with the 16 mm coaxial systems. A reference line is engraved on the top of the housing to indicate optical path direction. The housing features M3 threaded holes on the sides, and ensures compatibility with the 16 mm coaxial systems via the Ø4 mm coaxial system mounting posts. Additionally, the housing provides four SM05 internal threaded ports on the sides, allowing simultaneous compatibility with 12.7 mm lens tubes. Moreover, the coaxial cube is equipped with M4 threaded holes at the bottom for mounting posts.

The LBTEK 16 mm Coaxial Beamsplitter Cube is fixed with the post

Product Model
Operating Wavelength
Size
Unit Price
Compare
Lead Time
MBS1337-C 1100 nm-1600 nm20.0 mm×20.0 mm×20.0 mm$220.438 weeks
MBS1337-B 700 nm-1100 nm20.0 mm×20.0 mm×20.0 mm$220.438 weeks
MBS1337-A 400 nm-700 nm20.0 mm×20.0 mm×20.0 mm$220.438 weeks
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