Coatings for CO Laser Optics

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1 Coatings for CO Laser Optics ULO Optics is the leading European manufacturer of CO laser optics, a position it has held for more than two decades. The optics manufactured by ULO Optics are often used in high power CO laser systems and ULO's optics have always been designed for such environments. Apart from optimum design and manufacturing standards, the key to the success of any optic relates to the coating performance. ULO Optics is pleased to announce the launch of optics with very low absorption characteristics. These exciting new products are known as UltraLO coated optics. This new range of products sits alongside the well established array of available coatings ranging from anti-reflection coatings (AR) to partial reflectors for use as beam splitters at specific incidence angles (typically 45 degrees) or for use in cavity as rear mirrors or output couplers. Also available, our state of the art maximum reflectance and phase retarder coatings for use on Copper and Silicon.. UltraLO AR UltraLO optics are specially fabricated for use in the growing family of CO lasers with output powers in excess of 4kW. ULO Optics Typical absorption on AR/AR coated lenses with an edge thickness of 7.4mm is <0.15%. 1 UltraLO coated ZnSe lenses SuperMax TM TM The SuperMax coating is suitable for both Copper and Silicon. It provides maximum reaflectivity. This coating is resistant to UV radiation. Also available on Silicon Carbide. On copper it can withstand high power and is often used in pulsed and continuous wave cavities. Rs> 99.9% Rp> 99.7% Ave> 99.8% Phase shift < degrees Ultra Durable for easy cleaning There is a Dual Band version of the SuperMax TM coating available on Si and Cu for visible beam alignment. Reflectance at the visible wavelength >75%. TM SuperMax coated Si mirrors, also available on Copper and Silicon Carbide. Dual Band version available on Cu and Si for visible wavelengths. Europe: USA:

2 Polarisation Insensitive Beam Splitter For use at 45 degrees in systems where incident polarisation can vary. 3 Cu and Si Phase Retarders are used to convert a linearly polarised beam into a circularly polarised beam Split ratio 50:50 +/- 1% Phase Retarders on Copper and Silicon Used to convert a linearly polarised beam into a circularly polarised beam, so providing equal cut quality in all directions on the workpiece.. 90 degree +/- 3 degrees (< 1 degree available on request). Typical reflectance >98.5% Substrates up to 5 diameter can be coated 4 ZnSe AR/65%R Partial Reflector coating optimised for 10.6 m. m Partial Reflectors 0.75% to 99.9% The standard reflectance values for use at normal incidence are: AR/ 1, 3.5, 5, 10, 17, 5, 36, 50, 60, 65, 70, 75, 80, 85, 90, 95, 97, 98, 99, 99.5, 99.5 and 99.6%. Others are available upon request. A full range of polarisation optimised Partial Reflectors are available for use at 45 degrees, including the stadard AR/1, 3,5,33,50,99 and 99.5% Polarisation Forcing Mirrors Rs>99% : Rp<95% at 10.6mm at 45 degrees Dual Band AR T at 10.6mm >99% T at 633nm >95% 5 Transmission curves of a standard beam combiner optimised in this case for 633nm. Beamcombiner coatings optimised for other wavelengths are also available Infrared Beam Combiners Used in systems where visual alignment is carried out by the introduction of a visible laser beam in to the path of the invisible CO laser beam. T (%) av R at 633 or 670nm>99% T at 10.6mm > 99% at 45 degrees Also available Thermal imaging coatings such as Diamond Like Carbon Absorbing Thin Film Reflector coatings Wavelength (microns) 0.75 Visible ULO Optics UK & Worldwide Tel: Fax: sales@ulooptics.com Web: ULO Optics USA Phone: Fax: sales.usa@ulooptics.com Europe: USA:

3 UltraLO Supermax absorption on Copper lenses Performance Maximum reflectance laser optics and for zero high phase power shift CO laser systems

4 Superior performance Cu mirrors SuperMax coated mirrors provide exceptional performance and broad, uncompromised versatility. Highest Reflectivity > 99.8% average reflectivity guaranteed Typical R(s) = 99.93% R(p) = 99.81%. Absorption at normal incidence = 0.11%. Exceptional durability Our SuperMax coating withstands the MIL-Spec severe abrasion test making the mirrors highly durable and easily cleaned, leading to longer mirror lifetime. Ultimate Intracavity Optic SuperMax optics resist the harsh plasma UV intracavity environment making SuperMax mirrors the choice with OEM laser manufacturers. Red aiming beam compatible Reflection at 633nm allows HeNe laser alignment. Zero Phase Performance Every SuperMax optic, in addition to its other high performance characteristics, also provides zero phase shift with a guaranteed phase shift of 0 +/-. ThF free 4 The SuperMax coating utilises a ThF -free coating design. 4 Further information For more information and a full list of our Copper mirrors please view our website at laseroptics.umicore.com, or contact us via one of the methods listed below. Summary The SuperMax mirror can be used for various functions: high reflector, turning mirror, zero phase optic and intracavity mirror. Outstanding performance without compromise. Sample Selection of Cu mirrors 1 A selection of Copper mirrors available from Umicore Laser Optics. Don t see what you need? Specify your requirements for a rapid quotation. Part Number Cooling Diameter Thickness Notes 11SMA6-00 Air 8mm 6mm 15SMA6-00 Air 38mm 6mm 19.7SMA10-00 Air 50mm 10mm 19.7SMW5-00 Water 50mm 5mm 19.7SMW5-50 Water 50mm 5mm S1: 50M curve concave 19.7SMA9-00 Air 50mm 9mm 19.7SMA5-00 Air 50mm 5mm 3.6SMA6-00 Air 60mm 6mm 3.6SMA10-00 Air 60mm 10mm 30SMA Air 76.mm 1.7mm Umicore Laser Optics UK & Worldwide Tel: Fax: laseroptics.uk@umicore.com Web: laseroptics.umicore.com Umicore Laser Optics USA Phone: Fax: laseroptics.usa@umicore.com

5 UltraLO Supermax absorption on Siliconlenses Performance Maximum reflectance laser optics and for zero high phase power shift CO laser systems

6 Superior performance Si mirrors Supermax coated mirrors offer exceptional performance and broad, uncompromised versatility. Highest Reflectivity >99.8% average reflectivity guaranteed R(s) = 99.93%, R(p) = 99.81% Absorption at normal incidence = 0.11%. High durability Our SuperMax coating withstands the MIL-Spec severe abrasion test making the mirrors highly durable and easily cleaned, leading to longer mirror lifetime. Zero Phase Performance Every SuperMax optic, in addition to its other high performance characteristics, also provides zero phase shift with a guaranteed phase shift of 0 +/-. ThF free 4 The SuperMax coating utilises a ThF -free coating design. 4 Red aiming beam compatible Reflection at 633nm allows HeNe laser alignment. Further information For more information and a full list of our Silicon mirrors please view our website at laseroptics.umicore.com, or contact us via one of the methods listed below. Summary SuperMax coated Silicon mirrors are the ideal choice for a variety of applications, from total reflectors to lightweight scanner mirrors. Sample selection of Si mirrors 1 A selection of Silicon mirrors available from Umicore Laser Optics. Hundreds of Silicon SuperMax coated mirrors are available with both plano and curved surfaces. Don t see what you need? Send us your requirements for a rapid quotation. Part Number Application Diameter Thickness 5.0SIS3-00 Total reflector 1.7mm 3mm 5.9SIS3-00 Total reflector 15mm 3mm 7.5SIS3-00 Total reflector 19mm 3mm 10SIS3-00 Total reflector 5.4mm 3mm 10SIS4-00 Total reflector 5.4mm 4mm 9.8SIS3-00 Total reflector 5mm 3mm 11SIS3-00 Total reflector 5mm 3mm 15SIS4-00 Total reflector 38.05mm 4mm 15SIS5-00 Total reflector 38.05mm 5mm 17.5SIS4-00 Total reflector 44.5mm 4mm 0SIS5-00 Total reflector 50.8mm 5mm 19.7SIS10-00 Total reflector 50mm 10mm 3.6SIS10-00 Total reflector 60mm 10mm 30SIS Total reflector 76.mm 6.35mm LSM1016 Scanner mirror 16 x 10mm 1.5mm LSM44 Scanner mirror 4 x 4mm mm LSM3030 Scanner mirror 30 x 30mm mm Umicore Laser Optics UK & Worldwide Tel: Fax: laseroptics.uk@umicore.com Web: laseroptics.umicore.com Umicore Laser Optics USA Phone: Fax: laseroptics.usa@umicore.com

7 UltraLO Ultra-low absorption lenses for high power CO laser systems

8 Low absorption, high power UltraLO coated lenses from Umicore Laser Optics are designed for in high power systems where optimal performance is required. UltraLO coated parts absorb less energy then conventionally coated lenses, offering a range of benefits to the user. UltraLO absorption UltraLO coated lenses offer a market leading absorption figure of less than 0.15%. Maintained ultra low absorption Hygroscopic materials have been eliminated from the coating design enabling UltraLO lenses to maintain low absorption in storage and in high humidity environments. High performance UltraLO lenses will handle the same high power as conventional lenses but with less optical distortion and a smaller focal length shift. Longer lasting lenses The low absorption of UltraLO coated lenses can lead to longer lens lifetimes, giving improved uptime and fewer purchases of consumables Red aiming beam compatible UltraLO lenses are compatible with red aiming beams. Further information For more information please view the dedicated UltraLO absorption coating website at ultralo.umicore.com or contact us via one of the methods listed below.. 1 UltraLO coated ZnSe lenses from Umicore Laser Optics A selection of the UltraLO absorption coated lenses available from Umicore Laser Optics. Other UltraLO lenses available upon request. Part Number Lens Type Dia. FL ET 15HGP17-UL Meniscus 38.05mm 17mm 6.mm 15HGP190-UL Meniscus 38.05mm 190mm 6.mm 15BYS17-UL Meniscus 38.05mm 17mm 9.0mm 15BYS190-UL Meniscus 38.05mm 190mm 9.0mm 15PHGP17-UL Plano-Convex 38.05mm 17mm 7.6mm 15PHGP190-UL Plano-Convex 38.05mm 190mm 7.6mm VTE500-UL Meniscus 38.05mm 17mm 7.37mm VTE750-UL Meniscus 38.05mm 190mm 7.37mm 0EHGP17-UL Meniscus 50.8mm 17mm 9.6mm 0EHGP190-UL Meniscus 50.8mm 190mm 9.6mm 0PEHGP17-UL Plano-Convex 50.8mm 17mm 9.6mm 0PEHGP190-UL Plano-Convex 50.8mm 190mm 9.6mm Umicore Laser Optics UK & Worldwide Tel: Fax: laseroptics.uk@umicore.com Web: laseroptics.umicore.com Umicore Laser Optics USA Phone: Fax: laseroptics.usa@umicore.com