Dual Wavelength Beam Combiner/Lens

Keywords: lens,duan wavelength,combiner, DOE

Apr 19, 2020 View: 484 Data Sheet

Dual wavelength beam combiners are diffractive optical elements used to combine two incident beams with different wavelengths into the same focal point. In multi-wavelength light beams the dual wavelengths are diffractive optical elements used to comb

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In particular, this focus combiner is used for combining CO2 laser focus and visible aiming beam focus into a single focal point.

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.

Part Number	λ (nm)	Input Beam 1/e2@633nm (mm)	Working Distance (mm)	Dimensions (mm)	Material	Coating
DW-201-AP-Y-A	10600, 633	4-8.8	125	15	ZnSe	AR-V Coating
DW-208-AP-Y-A	10600, 633	4-13.3	100	38.1	ZnSe	AR-V Coating
DW-202-AP-Y-A	10600, 633	4-12	20	19	ZnSe	AR-V Coating