Beamsplitter

Beamsplitters

Beamsplitter is an optical component serves the purpose of dividing light into two separate beams, often based on wavelength or polarity. Conversely, it can function in reverse as a beam combiner, merging two light beams into a single one.

With applications spanning across various sectors such as interferomentry, laser systems, microscopy, telecommunications, these specialized mirrors find utility in a multitude of fields.

YREMOptics can make beamsplitters from various substrate materials such as glass, quartz, or optical crystals, with coatings typically composed of dielectric materials or metallic layers.

 
Specification
Material H-K9L, Fused Silica
Size tolerance +0.0 / -0.1mm
Surface quality 60/40
Clear aperture >90%
Thickness tolerance +0.0 / -0.1mm
Surface irregularity <λ/4@632nm

High precision splitters customized according customer’s design

Types of Beamsplitters that we can offer:
  1. Plate Beamsplitters:
    • Consist of a thin, flat substrate coated with a partially reflective coating.
    • Split incident light into transmitted and reflected beams.
    • Available in various split ratios, such as 50/50, 70/30, or custom ratios.
  2. Cube Beamsplitters:
    • Constructed from two prisms cemented together at a 45-degree angle.
    • Split incident light by total internal reflection and partial transmission.
    • Offer more compact designs compared to plate beamsplitters.
  3. Pellicle Beamsplitters:
    • Thin, transparent membrane coated with a partially reflective layer.
    • Transmit a portion of incident light while reflecting the rest.
    • Used in applications requiring minimal beam deviation or ghosting.
  4. Polarizing Beamsplitters:
    • Split incident light based on its polarization state.
    • Separate p-polarized and s-polarized light into orthogonal beams.
    • Used in polarimetry, interferometry, and optical communication.
  5. Dichroic Beamsplitters:
    • Reflect or transmit light based on its wavelength.
    • Used for separating or combining different spectral components of light.
    • Commonly employed in fluorescence microscopy, spectroscopy, and laser systems.