OPTICAL COMPONENTS Harmonic Separators Spherical Lenses Cylindrical Lenses Lens Kits Achromatic Doublets Multi-Element Micro Optics Mirrors Prisms Substrates & Windows Beamsplitters Designed to separate YAG laser outputs as a function of wavelength Three standard designs provide alternate transmission/reflection of the harmonics Measured laser damage threshold guidelines Provided on Grade A BK7 substrates Surfaces finished to λ/10 flatness Available for 532/1064 and 355/1064 Filter & Apertures Harmonic separators are a useful tool to These are dichroic (i.e., color dependent) beamsplitters which separate the YAG fundamental from its second harmonic. Three configurations are offered. One reflects the fundamental and the second reflects the 532nm harmonic and the third reflects the 355nm harmonic. They are available in four sizes 25.4mm, 30mm, 50mm and 50.8mm diameter. quickly separate the the second harmonic The sizes listed here are standard, but we are able to provide both larger and smaller sizes (and other wavelength separations for other applications) at competitive prices. HARMONIC SEPARATOR REFLECTIVITY fundamental from output of a YAG laser. Specifications & Tolerances Surface flatness: λ/10 Diameter: +0, -0.2mm Surface quality: 20-10 Parallelism: ≤5arcsec Thickness: ±0.2mm Clear aperture: >90% diameter Bevel: 0.2mmx45° typical Material: BK7, grade A Laser damage threshold: Measured for a sample 1064nm Harmonic Separator - >11Jcm2 for a 10ns pulse @1064nm. Measured for a sample 532nm Harmonic Separator - >7J/cm2 for a 10ns pulse @ 532nm. Reflectance: Rav>99.5% at 45 degree angle of incidence (see curves) Harmonic Separators Reflected Wavelength (nm) ORDERING & TECHNICAL SUPPORT PART NUMBER