Fuzhou Siaon Optoelectronic Technology Co., Ltd. provide Dual Wavelength Waveplates Dual wavelength waveplate is a multiple waveplate that provide a specitfic retardance at two different wavelengths, it's particularly useful when used in conjunction with other polarization sensitive components to separate coaxial laser beams of different wavelength. Material: Quartz Dimension Tolerance:+0.0, -0.1mm Clear Aperture: >90% Wavefront Distortion: λ/8@632.8nm Surface Quality: 20-10 Parallelism:< 1 arc sec Retardation Tolerance: λ/300 AR Coating:R�0.2%@Wavelength Mount:Black Anodized Aluminum
