Features
Extinction Ratio for Output Beam: 100 000:1 (See Diagram in Lower Right for Details)
Designed for High-Energy Lasers (see the Specs Tab for Damage Thresholds)
Available Uncoated or with One of Four Broadband AR Coatings
Uncoated: 350 nm – 2.3 µm Wavelength Range
350 – 700 nm Broadband AR Coating
650 – 1050 nm Broadband AR Coating
1050 – 1700 nm Broadband AR Coating
1064 nm V Coating
Mounted with Ø5 mm, Ø10 mm, or Ø15 mm Clear Aperture or Unmounted
with Ø10 mm Clear Aperture
20-10 Scratch-Dig Surface Quality on Input and Exit Faces (80-50 on Side Ports)
Fabricated from Highest Grade, Laser-Quality Natural Calcite (Low Scatter)
Glan-Taylor Design (Air-Spaced Birefringent Crystal Prisms)
Select Polarizers Available Unmounted from Stock
The Glan-Laser Calcite Polarizer is a Glan-Taylor Calcite Polarizer that is specifically designed to deal with high-energy laser light. These polarizers are manufactured from select portions of the calcite crystal that must pass a laser scattering sensitivity test. Like our Glan-Taylor polarizers, these polarizers are ideal for applications requiring extremely high polarization purity (100,000:1) and high damage thresholds. A significant amount of reflected light escapes the polarizers through the side port, including all of the ordinary ray and some of the extraordinary ray. As such, the escape beam is not fully polarized, and only the transmitted extraordinary ray should be used for applications that require a high-quality, polarized beam.
The input and output faces of these polarizers are polished to a laser quality 20-10 scratch-dig surface finish to minimize scattering of the transmitted extraordinary polarization component of the incident laser beam or light field. The ordinary polarization component is reflected and exits the polarizer at a 68° angle (wavelength dependent) through one of the two uncoated side ports, which are provided to allow bidirectional use of the polarizer. The escape ray is not fully polarized and the side escape ports have a lower surface quality of 80-50 scratch-dig.
Uncoated calcite has a broad wavelength range (350 nm – 2.3 μm) and these polarizers are available with AR coatings over four wavelength ranges: 350 – 700 nm, 650 – 1050 nm, 1050 – 1700 nm, or 1064 nm. Only the input and output faces of the polarizer are AR coated; the exit and gap faces of the prisms are not coated. This design allows these polarizers to have high extinction ratios at the expense of lower overall transmission.
Our pre-mounted polarizers can be mounted inside our Polarizing Prism Mounts for compatibility with our SM05 (0.535″-40) or SM1 (1.035″-40) threads. The SM05PM5 provides SM05 compatibility for pre-mounted polarizers with Ø5 mm clear apertures, while the SM1PM10 and SM1PM15 provide SM1 compatibility for polarizers with Ø10 mm or Ø15 mm clear apertures, respectively.
Hangzhou Shalom EO is a leading supplier of crystals, optics, OEM components products, a wide range of the products are offered:
• Crystals, optics and components for laser systems and applications;
• IR lenses, windows and optics for thermal imaging cameras and applications;
• Scintillation crystals and components for X-ray, nuclear ray detection;
• SAW crystals and wafers, Sapphire and other crystal and optics products for semiconductor, industrial, medical, scientific and research applications