Optics and Laser Optics by BFi OPTiLAS - A full range of visible & infrared optical components

High Extinction Thin Plate Polarizers 45° - XEP
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Broadband Polarizing Cube Beamsplitters -PBSH
Depolarizer DPL
Glan-Laser Linear Polarizer - CLPA
Glan-Brewster-Angle Air-Spaced Polarizers - CPBA
Glan-Thompson Polarizing Prisms 350-2300nm - CLPG
Wollaston Prism Polarizers 350�2300 nm -WLST
High Energy BroadbandPolarizing Beamsplitter -PBSK

Dichroic Sheet Polarizers 380-780nm-FPG
Polarization Tutorial
Laser Line Polarizing Cube Beamsplitters PBS
Rochon Prism Polarizers - RCHP
Thin-Film Plate Polarizers 45º -TFPN
UV Laser-Line Polarizing Cube Beamsplitters UPBS

High Extinction Thin Plate Polarizers 45° - XEP
Serie XEP high extinction polarizers are an ideal option for maximizing performance and minimizing alignment requirements. Unlike Brewster angle polarizers which work at an angle of incidence of 56°, the XEP high extinction polarizer works at 45°. Consequently, the reflected and transmitted beams are separated by 90° and orthogonally polarized, just like a cube polarizer. Substrate material: Calcite No antireflection needed Extinction ration 5x10⁴:1 Damage thresholds: 1J/cm² 8ns pulse; 500w/cm² CW at 1064nm typical

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Broadband Polarizing Cube Beamsplitters -PBSH
Serie PBSH: These broadband polarizing beamsplitter cubes are made from N-SF2 glass to improve broadband performance. For high-energy applications, CVI Melles Griot recommends other materials such as fused silica or N-BK7 glass, although they may not work as well over a wide wavelength range. Improved 500:1 extinction ration Broadband polarizer optimized for visible and near infrared wavelength Damage Threshold: cw: 100 W/cm2 @ 515 nm Pulsed: 500 mJ/cm2, 20 nsec, 20 Hz @ 515 nm Polarizing Bandwidth: 250nm at 515nm Optical Material: N-SF2 glass Reflected and transmitted beams separated by 90°

Depolarizer DPL
The DPL depolarizer consists of optically contacted 3° wedges of crystal quartz and fused silica. This inherently high damage threshold optic operates by imparting a variable phase shift across the beam aperture. Raman amplification Optically contacted fused silica and crystal quartz wedges Broadband antireflection coatings applied to input and output faces Eliminates systematic errors using polarization-sensitive optics in detection systems Optical Material: Fused silica and crystal quartz Coating Wavelength range: 450-700nm/650-1100nm/1200-1550nm Damage Threshold: cw: 500 kW/cm2 @ 1064 nm Pulsed: 2 J/cm2, 8-nsec pulse @ 1064 nm

Glan-Laser Linear Polarizer - CLPA
Serie CLPA: The Glan-Laser prism polarizer is made of two calcite prisms which are assembled with an air space. This polarizer is a modification of the Glan Taylor type and is designed to have less reflection loss at the prism junction. Substrate material: Calcite No antireflection needed Extinction ratio 5x10^-5 for calcite polarizer Damage Threshold: CLPA: = 100 mJ/cm2 CPAS, CPAD = 500 mJ/cm2 Air-spaced , medium power polarizers BBAR coated for visible or Near IR wavelengths Broadband medium-power polarizers BBAR coated for visible or near IR wavelengths Double escape window for intracavity use

Glan-Brewster-Angle Air-Spaced Polarizers - CPBA
Serie CPBA Glan-Laser prisms suffer a small, unavoidable loss at the two internal calcite-air interfaces. This loss is avoided in the CPBA series polarizers by presenting the p-polarized transmitted beam to these interfaces at Brewster's angle. The result is a high-power, low-loss polarizer that does not need AR coating. No antireflection coatings needed Brewster angle incidence at all surfaces yields greater than 98% transmission efficiency Rejected beams available for beamsplitting/beam combining applications or safe dumping Damage Threshold: CW: 500 W/cm2 @ 1064 nm Pulsed: 1 J/cm2, 20 nsec, 20 Hz @ 1064 nm Extinction Ratio: 5×10^-5 Substrate material: Calcite Extinction ration 5x10⁵:1 Damage thresholds: 500mJ/cm², 8ns pulse; 100w/cm², CW at 1064nm typical

Glan-Thompson Polarizing Prisms 350-2300nm - CLPG
Serie CLPG & CPBS - Glan-Thompson polarizers have a large acceptance angle while maintaining a high extinction of the s-polarization component. In applications where both polarizations are required, use a CPBS Glan Thompson polarizing beamsplitter. Glan-Thompson polarizers are used in fluorescence polarization, for optimizing specular reflection spectroscopy measurements, and to remove interference fringes from transmission spectra recorded at Brewster's angle. Substrate material: Calcite Extinction ration 5x10⁵:1 Damage thresholds: 10mJ/cm², 8ns pulse; 10w/cm², CW at 1064nm typical Broadband low power polarizers BBAR coated for visible or Near IR wavelengths Acceptance Angle ±7° about normal Polarizing Beamsplitters Substrate material: Calcite Extinction ration 5x10⁵:1 Damage thresholds: 10mJ/cm², 8ns pulse; 10W/cm², CW at 1064nm typical Broadband low power polarizers beamsplitter BBAR coated for visible or Near IR wavelengths Reflectance beam deviated by 45° is always normal to exit surface and does not change angle with wavelength

Wollaston Prism Polarizers 350�2300 nm -WLST
The WLST calcite Wollaston prism polarizer comprises two prisms of calcite cemented together. The ordinary ray in the first half of the prism becomes the extraordinary ray in the second half, and vice versa. Calcite polarizers available with and without AR coatings Beam separation of 5°, 10°, 15°, and 20° available Broadband 1×10^-5 extinction ratio Calcite polarizing bandwidth: 350–2300 nm Damage Threshold: CW: 10 W/cm2 @ 1064 nm Pulsed: 10 mJ/cm2, 20 nsec, 20 Hz @ 1064 nm

High Energy BroadbandPolarizing Beamsplitter -PBSK
Serie PBSK is a High-Energy Broadband Polarizing Cube Beamsplitters an alternative to calcite and Brewster angle polarizers, the PBSK is an optimal solution for high-energy broadband or multiline systems. λ/4 reflected and transmitted wavefront distortion Damage threshold CW: 1 MW/cm2 @ 1064 nm Pulsed: 5 J/cm2, 20 nsec, 20 Hz @ 1064 nmup to 10 J/cm2 at 1064 nm Incidence and reflected beams separated by 117° Extinction Ratio: T p/T s>10³:1

Dichroic Sheet Polarizers 380-780nm-FPG
Serie FPG Dichroic sheet polarizers are used to subject either s- or p-polarization to strong absorption. CVI Melles Griot polarizers are made of a plastic dichroic polarizing sheet sandwiched between selected strain-free glass plates. Dichroic sheet polarizers offer large apertures and acceptance angles Optical Material Plastic dichroic polarizing sheet Extinction Ratio (H0/H90) for Crossed Polarizer Pair: 10,000:1 for visible white light Wavelength range: 380-780nm

Polarization Tutorial
Polarization Tutorial Polarization States Cartesian representation Circular representation Elliptcial representation Linear Polarizer Waveplates Linear birefringence Multiple order Zero order Achromatic waveplates Dual Waveplates Low order Savart plates Soleil Babinet compensator

Laser Line Polarizing Cube Beamsplitters PBS
Serie PBS: Polarizing beamsplitter cubes are used to split a laser beam into two orthogonally polarized components; p-polarization is transmitted straight through while s-polarization is reflected at 90°. PBS polarizer cubes utilize a durable all-dielectric coating at the internal cemented interface, and all external surfaces are antireflection coated for the wavelength specified. Improved 1000:1 extinction ration Damage Threshold: cw: 100 W/cm2 @ 515 nm Pulsed: 1 J/cm2, 20 ns, 20 Hz @ 1064 nm Projection systems, signal monitoring, color separation and recombination, optical coupling Fewer ghost images than plate beamsplitters Optical isolation (in combination with waveplate) Continuously variable beamsplitter (In combination with waveplate)

Rochon Prism Polarizers - RCHP
Serie RCHP- Rochon prisms are used in applications where good polarization selectivity is required across a large range of wavelengths. In a Rochon prism, both polarization components are transmitted. VUV-grade MgF2 or calcite polarizers MgF2 deviation angle 5.1° at 193 nm Beam deviations of 5°, 10°, and 15° available Broadband 1×10-5 extinction ratio MgF2 polarizing bandwidth: 140–6000 nm

Thin-Film Plate Polarizers 45º -TFPN
TFPN thin-film plate polarizers are an ideal choice when both high laser damage threshold and a 90-degree reflection angle are necessary. Unlike Brewster angle polarizers which work at an angle of incidence of 56°, the TFPN plate polarizer works at 45°. Consequently, the reflected and transmitted beams are separated by 90° and orthogonally polarized, just like a cube polarizer. This makes them ideal for use as either a polarizing beamsplitter or beam combiner. High-energy laser line polarizer Reflected and transmitted beams separated by 90° No angle tuning required Larger clear aperture than Brewster plate polarizers Damage Threshold: cw: 1 MW/cm2 @ 1064 nm Pulsed: 10 J/cm2, 20 nsec, 20 Hz @ 1064 nm Extinction Ratio (Tp/Ts) : 500:1

UV Laser-Line Polarizing Cube Beamsplitters UPBS
Serie UPBS: UV polarizing cube beamsplitters are made from UV grade fused silica to improve UV performance. Fused-silica cube polarizers for doubled argon, tripled Nd:YAG, quadrupled Nd:YAG, and UV excimer lasers 100:1 extinction ratio Transmission efficiency > 90% For use with fluences less than 10 mJ/cm2 Contact us for 193 nm polarizers Damage Threshold: cw: 10 W/cm2 @ 266 nm Pulsed: 10 mJ/cm2, 20 nsec, 20 Hz @ 266 nm Wavelengths: 248-257-266-308-351-355nm