Ultrafast Beamsplitters

Custom Ultrafast Beamsplitters

Custom Ultrafast Beamsplitters offer optimized dispersion control, high damage threshold, and tailored designs for precise ultrafast laser applications.

  • Deterministic Group Delay Dispersion (GDD) in Reflection and Transmission
  • Designed for P-Polarized Light Incident at 45°
Contents hide
1 Key Features of Ultrafast Beamsplitters
2 What’s the difference between a dichroic filter and a beamsplitter?
3 Applications of Ultrafast Beamsplitters
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Specifications

Parameter Specification
Wavelength Range 1000 – 2000 nm
AR Coating Rabs < 0.5% over 1000 – 2000 nm
Diameter 1″ (25.4 mm)
Diameter Tolerance +0.00/-0.10 mm
Thickness 4.0 mm
Thickness Tolerance ±0.10 mm
Clear Aperture >80% of Diameter
Angle of Incidence (AOI) 45°
Laser-Induced Damage Threshold –
Input Polarization P Polarization
Surface Quality 15-10 Scratch-Dig
Surface Flatness <2λ Over Clear Aperture
Parallelism ≤5 arcmin

Ultrafast beamsplitters are advanced optical components designed for use in femtosecond and picosecond laser systems.

They are optimized to minimize group delay dispersion (GDD), ensuring that the ultrashort laser pulses maintain their duration and quality after splitting.

Also, this makes them critical in applications where timing precision and optical fidelity are essential.

Key Features of Ultrafast Beamsplitters

  • Ultra-low GDD – They prevent pulse broadening and maintains temporal integrity.
  • High laser damage threshold – Suitable for handling high peak power from ultrafast lasers.
  • Custom splitting ratios – Available in 50/50, 70/30, or application-specific designs.
  • All-dielectric coatings – The beamsplitters provide high transmission, low absorption, and broad spectral bandwidth.
  • Low wavefront distortion – The beamsplitters ensure excellent beam quality for precision optical setups.

 

What’s the difference between a dichroic filter and a beamsplitter?

Feature Dichroic Filter Beamsplitter
Main function Wavelength selection Splitting light into two beams
Reflection/transmission Depends on wavelength Depends on ratio or polarization
Wavelength specificity High Can be broad or specific
Typical applications Color separation, fluorescence, filters Interferometry, beam routing, imaging

 

Applications of Ultrafast Beamsplitters

 

  • Ultrafast spectroscopy – For studying ultrafast dynamics in materials and molecules.
  • Pump-probe experiments – Splitting a laser pulse into pump and probe beams.
  • Nonlinear optics – Also, they support harmonic generation and parametric amplification.
  • Laser micromachining – The beamsplitters ensure accurate beam control in high-precision manufacturing.
  • Optical coherence tomography (OCT) – Maintaining signal integrity in biomedical imaging.

 

Chenyu ultra-fast beam splitter is available in standard imperial dimensions, facilitating its integration into optical systems.

If your application requires an ultra-fast beam splitter with customized dimensions or coating specifications, please contact us.

Also, we have other speamlitters products.

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