Dual Wavelength Products

In multi-wavelength light beams the dual wavelengths are diffractive optical elements used to combine two incident beams with different wavelengths into the same focal point. 
In particular, this focus combiner is used for combining CO2 laser focus and visible aiming beam focus into a single focal point, thus implementing a medical beam combiner, while the two beams are at the same optical path.
The Dual wavelength corrects the strong chromatic aberrations between a CO2 laser and its visible aiming beam.
This hybrid element,is based on a Plano convex lens with corresponding diffractive pattern on its Plano side.
The focal length for both wavelengths is determined during the design, according to the customer’s application.

HOLO/OR is offering a Diffractive F-Theta lens with Dual Wavelength lens for medical treatments and scanner systems. This option eliminates the need to place the Dual Wavelength lens inside the scanner, and provides both focal shift and field corrections. These elements are represented by the part numbers with FT in the below table (as FT-001-AP-Y-A).

Dual Focus Combiner madical beam combiner
Dual Wavelength

Need shorter lead time? Lead time of uncoated DOE is 5 weeks shorter! Click here for questions.

PNλ [nm]Input BeamWorking DistanceDimensionsMaterialCoatingRemarksAdd to Quote
DW-201-AP-Y-A 10600, 633 4-8.8 123.7 15 ZnSe AR-V Coating Add to Quote
DW-208-AP-Y-A 10600, 633 4-13.3 100 38.1 ZnSe AR-V Coating Add to Quote
DW-202-AP-Y-A 10600, 633 4-7 20 19 ZnSe AR-V Coating Add to Quote
FT-001-AP-Y-A 10600, 633 4-13 31.67 25.4 ZnSe AR-V Coating Diffractive F-Theta for both wavelengths Add to Quote
Need shorter lead time? Lead time of uncoated DOE is 5 weeks shorter!
Click here for RFQ and questions

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Holo/Or offers Diffractive Optical Elements in a wide variety of wavelength between 180nm and 11um

For DOE solutions outside this range, please contact us for custom solutions.

Find your product accordingly to your full Part Number (PN)

Wavelength range193nm to 10.6um
DOE design4 levels to 16-level
Diffraction efficiency81% - 96%
Element sizeFew mm to 150mm
Damage threshold~3 J/cm2 in 7nS pulse at 1064nm
Coating (optional)AR/AR Coating
Custom DesignAlmost any chromatic aberrations correction


  • High power threshold
  • Compact size
  • High efficiency
  • Pure ZnSe
  • Optional Ar/Ar coating


  • Surgical laser systems
  • Industrial CO2 laser systems

Mounting Adapter

For the customer’s convenience, HOLO/OR offers a large range of mounting adapters for DOEs and other optical components. The DOE can be ordered separately from the adapter or already mounted onto it. We provide round adapters that fit either round or square optics. HOLO/OR can also offer a custom adapter for your needs. Square optic to round adapter: […]