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).
Need shorter lead time? Lead time of uncoated DOE is 5 weeks shorter! Click here for questions.
|PN||λ [nm]||Input Beam||Working Distance||Dimensions||Material||Coating||Remarks||Add 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|
** Availability time may differ due to missing raw materials
Need shorter lead time? Lead time of uncoated DOE is 5 weeks shorter!
Click here for RFQ and questions
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For DOE solutions outside this range, please contact us for custom solutions.
|Wavelength range||193nm to 10.6um|
|DOE design||4 levels to 16-level|
|Diffraction efficiency||81% - 96%|
|Element size||Few mm to 150mm|
|Damage threshold||~3 J/cm2 in 7nS pulse at 1064nm|
|Coating (optional)||AR/AR Coating|
|Custom Design||Almost any chromatic aberrations correction|
- High power threshold
- Compact size
- High efficiency
- Pure ZnSe
- Optional Ar/Ar coating
- Surgical laser systems
- Industrial CO2 laser systems