Glan-Laser Calcite Polarizers
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Catalog excerpts

576 O p t i c s Phone: 1-800-222-6440 • Fax: 1-949-253-1680 WINDOWS BEAMSPLITTERS OPTICAL FILTERS POLARIZATION OPTICS DIFFRACTION GRATINGS HIGH-ENERGY OPTICS ULTRAFAST LASER OPTICS ACCESSORIES Glan-Laser Calcite Polarizers Our Glan-Laser Calcite Polarizers are designed for demanding applications requiring extreme polarization purity and high resistance to laser damage. Glan-laser polarizers are air-spaced, select-grade calcite prism pairs with the prism interface angles optimized for minimum insertion loss. They can be used in Q-switched laser cavities and other multiple pass applications. The housing mounts into our standard 25.4 mm holders, and the polarizers are offered with broadband AR coatings for the visible and NIR regions or a special V-coating for 1064 nm. Specifications Material Calcite Wavefront Distortion ë/4 at 632.8 nm over the full aperture Clear Aperture 10 mm Surface Quality 20-10 scratch dig, 80-50 scratch-dig for exit apertures Transmission Tp > 92%, polarized input, with broadband AR coating; Tp > 95%, polarized input, with AR V-coating for 1064 nm Extinction Ratio Tp/Ts > 100,000:1, 400–1064 nm, unpolarized input Transmitted Beam Deviation <3 arc min Reflected Beam Deviation 67 ° Acceptance Angle Wavelength dependent, from 4° full angle at 441.6 nm to 1° full angle at 1064 nm Dimensions Tolerance ±0.25 mm Antireflection Coating broadband, multilayer antireflection coating, Ravg <0.5% Temperature Range -50 °C to 90 °C Durability MIL-C-675C, moderate abrasion Damage Threshold 500 W/cm2 CW, 4 J/cm2 with 10 nsec pulses, typical Ordering Information Model Wavelength (nm) 10GL08 350–2300 (uncoated) 10GL08AR.14 430–700 10GL08AR.16 650–1000 10GL08AR.18 1000–1550 10GL08AR.33 1064 • Superior broadband performance • Extinction ratio >100,000:1 • Air-spaced for high laser damage resistance • Low wavefront distortion • Best select-grade calcite P P S S 18.1 26.4 ø 13.5 TYP ø 10.0 41.3 7.6 JAM NUT 1.063-20 THD ø 25.0 POLARIZATION AXIS RM25A Wave Plate/Polarizer Rotation Mount page 696 481 Series Rotation Stages page 910

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