50:50 (R:T) Non-Polarizing Beamsplitter Cubes

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Product Description
  • Substrate material: N-BK7
  • Splitting ratio (R:T): 50:50
  • Operating wavelength: 400 nm-700 nm, 700 nm-1100 nm, 1100 nm-1650 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 ratio50:50(R:T)
Surface finish (scratches/pits)40/20
Exit angleTransmission: 0°±5 arcmin; Reflection: 90°±5 arcmin;
50:50 (R:T) Non-Polarizing Beamsplitter Cubes, 30 mm Coaxial Cube Mounts
  • Splitting ratio: 50:50 (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.

LBTEK 30 mm Coaxial Beam Splitter Cube with Mounting Rod Fixation
Product Model
Operating Wavelength
Size
Unit Price
Compare
Lead Time
MBS1455-A 400 nm-700 nm25.4 mm×25.4 mm×25.4 mm$237.038 weeks
MBS1455-B 700 nm-1100 nm25.4 mm×25.4 mm×25.4 mm$239.788 weeks
MBS1455-C 1100 nm-1650 nm25.4 mm×25.4 mm×25.4 mm$239.788 weeks
50:50 (R:T) Non-Polarizing Beamsplitter Cubes, Unmounted
  • Splitting ratio: 50:50 (R:T)
  • Insensitive to beamsplitting polarization
  • Various sizes available

LBTEK offers non-polarizing beamsplitter cubes in six sizes: 5 mm, 10 mm, 12.7 mm, 20 mm, 25.4 mm, and 50.8 mm. Among them, 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.

LBTEK BS mounted in a beamsplitter cube
Product Model
Operating Wavelength
Size
Unit Price
Compare
Lead Time
BS1555-A 400 nm-700 nm50.8 mm×50.8 mm×50.8 mm$541.928 weeks
BS1455-A 400 nm-700 nm25.4 mm×25.4 mm×25.4 mm$2058 weeks
BS1355-A 400 nm-700 nm20.0 mm×20.0 mm×20.0 mm$184.878 weeks
BS1255-A 400 nm-700 nm12.7 mm×12.7 mm×12.7 mm$167.358 weeks
BS1155-A 400 nm-700 nm10.0 mm×10.0 mm×10.0 mm$160.038 weeks
BS1055-A 400 nm-700 nm5.0 mm×5.0 mm×5.0 mm$150.888 weeks
BS1555-B 700 nm-1100 nm50.8 mm×50.8 mm×50.8 mm$541.928 weeks
BS1455-B 700 nm-1100 nm25.4 mm×25.4 mm×25.4 mm$2058 weeks
BS1355-B 700 nm-1100 nm20.0 mm×20.0 mm×20.0 mm$190.498 weeks
BS1255-B 700 nm-1100 nm12.7 mm×12.7 mm×12.7 mm$175.598 weeks
BS1155-B 700 nm-1100 nm10.0 mm×10.0 mm×10.0 mm$169.838 weeks
BS1055-B 700 nm-1100 nm5.0 mm×5.0 mm×5.0 mm$148.138 weeks
BS1455-C 1100 nm-1650 nm25.4 mm×25.4 mm×25.4 mm$2058 weeks
BS1355-C 1100 nm-1650 nm20.0 mm×20.0 mm×20.0 mm$192.198 weeks
BS1255-C 1100 nm-1650 nm12.7 mm×12.7 mm×12.7 mm$175.598 weeks
BS1155-C 1100 nm-1650 nm10.0 mm×10.0 mm×10.0 mm$171.48 weeks
BS1055-C 1100 nm-1650 nm5.0 mm×5.0 mm×5.0 mm$148.138 weeks
50:50 (R:T) Non-Polarizing Beamsplitter Cubes, 16 mm Coaxial Cube Mounts
  • Splitting ratio: 50:50 (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
MBS1355-C 1100 nm-1650 nm20.0 mm×20.0 mm×20.0 mm$202.658 weeks
MBS1355-B 700 nm-1100 nm20.0 mm×20.0 mm×20.0 mm$202.658 weeks
MBS1355-A 400 nm-700 nm20.0 mm×20.0 mm×20.0 mm$202.658 weeks
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