Dual Wavelength waveplate is a multiple waveplate that provide a specific retardance at two different wavelengths. It is particularly useful when used in conjunction with other polarization sensitive components to separate coaxial laser beams of different wavelength.
Widely used on Third Harmonic Generation (THG) system.
Material Optical grade Crystal Quartz
Dimension Tolerance +0.0,-0.2mm
Wavefront Distortion λ/10@633nm
Retardation Tolerance λ/100
Damage Threshold 500MW/cm2 in 5 ns pulse
Surface Quality 20/10 Scratch/Dig
AR Coating R<0.2% at center wavelength
Standard wavelength λ@1064nm +λ/2@532nm