Used to separate the spectral regions or specified wavelengths
	Coatings are provided by Ion Beam Sputtering (IBS) or Electron beam evaporation with/without Ion assistance coating techniques

Wavelength separating coatings are used to separate the spectral regions or specified wavelengths (e.g. harmonic components) of the multi-frequency laser systems by selective spectral reflection, transmission and absorption. These multilayer dielectric coatings are used to separate the various harmonic components of frequency doubled laser systems by selective spectral reflection and transmission. In all cases one wavelength is reflected while the others are transmitted.

Wavelength Separating Coatings Reflected Wavelength, nm Transmitted Wavelength, nm Coating Code R>99% @ 266 T>90% @ 355+532+1064 WS1 R>99.5% @ 343 T>95% @ 515+1030 WS2 R>99.5% @ 355 T>95% @ 532+1064 WS3 R>99.5% @ 400 T>95% @ 800 WS4 R>99.5% @ 515 T>95% @ 1030 WS5 R>99.5% @ 515 T>85% @ 630 - 1300, AOI=0° T>90% @ 630 - 1300, AOI=45° WS6 R>99.5% @ 532 T>90% @ 266 WS7 R>99.5% @ 532 T>95% @ 1064 WS8 R>99.5% @ 532+1064 T>90% @ 355 WS9 R>99.5% @ 532+1064 T>95% @ 808 WS10 R>99.5% @ 750 - 850 T>95% @ 532 WS11 R>99.5% @ 800 T>95% @ 400 WS12 R>99.5% @ 800 T>95% @ 1100 - 1600 WS13 R>99.5% @ 1030 T>95% @ 515 WS14 R>99.5% @ 1030 T>95% @940 WS15 R>99.5% @ 1030 T>95% @ 976 WS16 R>99.5% @ 1064 T>95% @ 355 WS17 R>99.5% @ 1064 T>95% @ 532 WS18 R>99.5% @ 1064 T>95% @ 400 - 700 WS19 R>99.5% @1064 T>95% @ 808 WS20

Standard Specifications Coating Adhesion and Durability Per MIL-C-675A Clear Aperture >90% of diameter Laser Damage Threshold >5 J/cm2 for 10 ns pulses @ 1064 nm

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