ALTECHNA
ALTECHNA
立陶宛
光学
汽车工程 | 非大学研究机构 | 光学 | 安全防范工程
http://www.altechna.com
Altechna’s beam expanders are assembled using one diverging and one converging lenses. As there is no focal point inside the beam expander, it can be used for high powers. Special treatment of lenses and mechanics is performed for UV application to improve lifetime and LIDT of the expander. Standard magnifications are from 1.1x to 10x. Beam expanders for any wavelengths between 266 - 2000 nm are available upon request.
MDC is motorized device which changes beam divergence from approximately -2 mrad (converging) to +4 mrad (diverging). As an addon to 2D galvo scanners this device upgrades automated 2D fabrication setup to 3D. It is achieved by changing focal point position along z-axis when adjusting beam divergence. MDC can control working distance and focus beam diameter in real time. Device is lighter in weight and smaller in dimensions compared to other solutions in the market. Due to simplified design, it is a cost saving and user-friendly device.
PowerXP attenuates laser light intensity continuously without introducing additional energy fluctuations. Altechna offers Compact (CA 8 mm) and Maxi (CA 15 mm) versions. With an upgraded belt drive and electronics for quick and precise power control, PowerXP motorized attenuators are a reliable solution for industrial applications. Maxi version contains a motorized rotating quartz λ/2 phase waveplate and one or two thin film polarizers are used to separate the input beam into s-polarized and p-polarized parallel output beams. Pure p-polarization should be selected for maximum transmission and pure s-polarization for maximum attenuation. Compact version contains high energy optical contacted λ/2 phase waveplate and single high contrast thin film plate polarizer leading to single p-polarized output beam. The intensity ratio of separated beams is continuously tuned by rotating the waveplate. Small footprint and high energy compatible optics of Compact version makes it a go-to solution for power control and beam-splitting in demanding laser processing applications.
Altechna provides standard (air-spaced) and high power (optically bonded) waveplates. They are made from materials that has a birefringence property. Most common types are designed so ordinary ray would exhibit half (λ/2) or quarter (λ/4) wave retardation with respect to an extraordinary one. Such waveplates are used to rotate the plane of polarization, convert linear polarization to circular and vice versa. Such elements are used for electro-optic modulation and as a variable ratio beamsplitter, when used in conjunction with a polarization cube. Although latter two types of waveplates are the most common, Altechna offers custom retardation values on request.
Polarizing beamsplitter cubes offer several advantages over plate beamsplitters. They are easy to handle, high contrast and high extinction ratio polarizers that split a randomly polarized beam into two orthogonal linearly polarized components. These products are typically used in laser-beam separation, combination and optical-isolation applications. The epoxy-free construction of the cubes enables a superior performance at high energy levels.
High Contrast Thin Film Polarizers (TFP) are made using advanced Ion Beam Sputtering (IBS) coating technology. These thin film polarizers separate s- and p-polarization components of high energy laser beams. Due to very low losses they are perfect for intra and extra cavity usage. Because of their high damage threshold and extinction ratio (>1000:1), thin film polarizers are a good replacement for Glan laser polarizing prisms or polarizing cube beam splitters. For optimal performance, polarizers should be mounted in an appropriate holder allowing angular adjustment. We offer two types of high contrast polarizers: with higher LIDT or higher contrast values.
Low Loss HR mirrors are essential in laser systems where the lowest possible losses are required. Mirrors are manufactured with Ion Beam Sputtering technology (IBS) reaching extremely high-quality specifications. IBS thin films feature higher density and durability than e-beam coatings, making them resistant to environmental conditions such as heat, humidity, and pressure. IBS mirrors reach the highest reflectance (>99.9%) in a certain wavelength range and angles of incidence (AOI). Also, scattering is minimized which is usually a limiting factor for high reflectivity.
Dielectric HR Laser Line Mirrors provide higher reflectivity values than metallic mirrors, making them a perfect choice for high-performance laser systems. HR mirrors can be optimized for certain wavelength, angle of incidence and polarization. We design mirrors in-house to meet your desired specifications and provide high-performance optics. Every coating batch is tested to confirm reflectivity values. Mirrors can also be optimized for high LIDT and LIDT measurements can be conducted upon request.
激光平台-线上自动报价-价格公允-省钱省心-品质保证
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