User Guide for G H models including: DAF4xQVTa7I Waveplates for Optics, DAF4xQVTa7I, Waveplates for Optics, for Optics, Optics
G&H Products: Waveplates for Optics
G&H Technologies │ Magnetorheological Finishing (MRF)
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DocumentDocumentG&H: A PHOTONICS SPECIALIST G&H solves complex challenges for our customers by developing innovative photonics solutions that enhance performance, reliability, and efficiency. We are an award-winning name in the photonics industry with global reach and an established heritage dating back 75 years. Emerging applications increasingly employ photonics as the enabler. Our customers require specialized, reliable and highperformance solutions. G&H pushes the boundaries in these key areas and provides differentiating product solutions. We maintain close and long-lasting relationships with our customers. Aerospace & Defense G&H is a photonics technology business headquartered in Ilminster Somerset, UK with operations in the USA and Europe. Industrial & Telecom A BETTER WORLD WITH PHOTONICS. Gooch & Housego PLC Dowlish Ford, Ilminster TA19 0PF , UK Contact us: +44 1460 256440 sales@gandh.com gandh.com Life Sciences BROAD GLOBAL EXPERTISE Made in the UK Made in the USA Ilminster, UK 49,679 ft² 4,615 m² Fremont, USA 40,000 ft² 3,716 m² Keene, USA 12,800 ft² 1,189 m² Cleveland, USA 80,000 ft² 7,432 m² Rochester, USA 43,226 ft² 4,015 m² Moorpark, USA 50,000 ft² 4,645 m² Boston, USA 15,500 ft² 1,439 m² Torquay, UK 41,000 ft² 3,850 m² St. Asaph, UK 9,149 ft² 850 m² Ashford, UK 30,000 ft² 2,787 m² Plymouth, UK 22,000 ft² 2,043 m² G&H employs over 1,000 skilled employees across 11 manufacturing and design facilities. We also have 3 sales offices and a contract manufacturing partner in Thailand. MANUFACTURING CAPABILITIES Table of Contents Mirrors............................................................... Page 5 Prisms................................................................ Page 6 Beamsplitters.................................................. Page 7 Lenses................................................................ Page 8 Windows............................................................ Page 10 Waveplates....................................................... Page 11 Lens assemblies & sights............................ Page 12 Polymer optics................................................ Page 14 Filters and coatings....................................... Page 15 CUSTOM COMPONENTS G&H moves you efficiently from prototype to volume production. We support your product design to meet your requirements. Lenses, mirrors, prisms, beamsplitters, waveplates, and more Build-to-print manufacturing Expertise in demanding applications like space, defense, submarine, and medical USA and UK manufacturing CUSTOM ASSEMBLIES Our optical design, mechanical and electrical engineering, assembly, and technical sales teams have amassed unparalleled experience in custom assemblies. Electro-optics, medical devices, periscopes, infrared systems, microscope electro-optic objectives, and more Design and manufacturing for the most demanding applications, e.g. the battlefield ITAR manufacturing capabilities 4 | sales@gandh.com G&H QUALITY CONTROL & METROLOGY We have invest in premium measurement equipment to ensure our customers' parts and assemblies meet the most exacting of specifications. State-of-the-art metrology ISO 13485, ISO 9001, ISO 14001, MIL-SPEC quality systems, AS 9100 All systems needed for medical, aerospace, and defense MIRRORS We are a leading provider of superpolished optical components for 40+ years, offering a proprietary process that caters to high volume production requirements as well as small volume, specialized applications. These superpolished substrates result in low scattering losses and significantly fewer defects. We provide custom high-reflectivity mirrors that offer superior performance and value to customers developing laser cavities, ranging from small and lightweight range finding lasers to industrial lasers. Manufacturing in the US and UK High laser damage (LIDT) Super polished mirrors with 99.9995% specular reflectivity Commercial Precision High Precision Ultra High Precision Dimension 1 - 600mm Dimension tolerance ±0.25mm ±0.25mm ±0.1mm ±0.05mm Flatnesss 4 - 6 / 4 / 10 / 50 Surface quality 80 - 50 40 - 20 10 - 5 0 - 0 Surface roughness - - <1Å RMS <1Å RMS Coating options Metallic, broad band dielectric, ultra low loss dielectric, laser coating, hard coating Reflectivity 85% - 99.9995% Wavelength range 190nm - 40µm Substrate options Metal, glass, crystal, ceramic, polymer Optical surface Flat, spherical, aspherical, off axis, freeform Common geometries Round, elliptical, polygonal, rectangular, parabolic Other Light weighting, assembly, optical contacting APPLICATIONS Laser cavities, e.g. ring laser gyros Direct energy weapons Missiles Satellites and airplanes Medical devices, including consumables KEY METROLOGY Cavity ring down spectrometer (CRDS) Interferometers ranging 4" - 18" White light interferometers Atomic force microscopes KEY EQUIPMENT Super polisher for parts up to 18" Glass mills for complex precision shapes Magnetorheological finishing (MRF) IBS and IAD coating capabilities For more information on MIRRORS, visit www.gandh.com/precision-mirrors gandh.com | 5 PRISMS G&H is a high-quality manufacturer of prisms. Although they appear to have a simple function, their manufacture is actually quite complex. Each surface of a G&H prism that is polished and coated is held to extremely precise angular tolerances with respect to the other surfaces. Prisms are critical components in optical systems that utilize their bending or refracting properties to bend, fold, invert, reinvert, displace, and deviate light. While not used as frequently as lenses and mirrors, their role is essential. The manufacturing of prisms is challenging, as every surface and its angular tolerances to the whole are difficult to maintain during polishing and coating. This process requires complex tooling that is as difficult to manufacture and maintain as the prism itself. To ensure reliable performance in the field, we employ advanced metrology capabilities to qualify every component at each stage of the manufacturing process. G&H has ISO9001 certifications across all manufacturing sites and AS9100C certifications across select facilities. Durability testing can be performed against MIL, DIN, or BSI standards as appropriate. Manufacturing in the UK Precise angular tolerances Dimension Dimension tolerance Flatnesss Surface quality Per surface angle tolerance Beam deviation Substrate options Precision 5 - 150mm High Precision 5 - 30mm ±0.1 ±0.01 / 5 / 20 40 - 20 10 - 5 ±1 arcmin ±2 arcsec 2 arcmin ±1 arcsec Fused silica, glasses, germanium, silicon, ZnS APPLICATIONS Laser cavities Laser rangefinders Dermatology Periscopes Optical interferometry Spectroscopy Biomedical KEY METROLOGY Trioptics Prism Master 6" and 18" Zygo interferometers (1/50th wave accuracy flatness RWE and TWE) CNC Smartscope KEY EQUIPMENT & PROCESSES DMG Ultrasonic 50 CNC Optical contacting 18" - 48" lap polishers Custom designed in-house glass tooling 6 | sales@gandh.com For more information on PRISMS, visit www.gandh.com/precision-prisms BEAMSPLITTERS G&H's optimized beamsplitters are engineered to have a high laser damage threshold for each unique wavelength, splitting ratio, and incident angle combination. We offer both cube and plate beamsplitters that are engineered for precise beam splitting and optimal performance. Cube beamsplitters can split the incident beam based on polarization or power ratio, and are mechanically durable and easy to mount, without any ghost beams. Our cube beamsplitters can be provided in cemented, optically contacted, or air-spaced forms, depending on your needs. If you need higher beam power handling capability, our plate beamsplitters are the way to go. They exhibit intrinsic advantages over cube beamsplitters, making them ideal for high-energy laser applications or where size and weight limits are a concern. While plate beamsplitters generate a beam offset dependent upon the thickness of the substrate, our anti-reflection coating on the exit surface can minimize ghost beams. Manufacturing in the UK High laser damage threshold for each unique wavelength, splitting ratio, and incident angle combination Cube beamsplitters and plate beamsplitters Dimension Dimension tolerance Beam deviation Polarizing extinction ratio Beamsplitting ratio (R%/T%) Ratio tolerance Wavelength range Precision 5 - 150mm ±0.1 ±1 arcmin 100:1 ±10% High Precision 5 - 50mm ±0.01 ±2 arcsec 500:1 5/95 to 90/10 ±6% 355nm - 2500m APPLICATIONS Laser cavities Metrology Dermatology Optical interferometry Targeting Biomedical KEY METROLOGY Essent PhotonRT; dual beam dispersive with variable angle and polarization Perkin Elmer 983G; IR dual beam dispersive, near normal AOI only Perkin Elmer Frontier Optica; FTIR designed for IR optics industry KEY EQUIPMENT Humidity and temperature cycling Calibrated abrasion and adhesion test kits 3rd party laser damage testing For more information on BEAMSPLITTERS, visit www.gandh.com/beamsplitters gandh.com | 7 LENSES Precision lenses are crucial optical components for a wide range of applications in industries such as aerospace, security, defense, machine vision, healthcare, and life science. At G&H, we specialize in the manufacturing of custom lenses for imaging, focusing, collimation, and illumination purposes, utilizing standard polishing and grinding techniques, as well as singlepoint diamond turning. Applications for our precision lenses include dental imaging, dermatology, endoscopy, hyperspectral imaging, lasers, machine vision inspection, metrology, optometry, projection, range finding, reconnaissance, surveillance, target identification, targeting and designating, and thermal imaging. Design for manufacture Our lens production process follows a design-for-manufacture approach, ensuring the production of cost-effective, high-quality custom lenses. We have CNC generating, grinding, and polishing capabilities for spherical, semi-spherical, and aspheric lenses, including high-precision aspheric surfaces on optical glass produced using 5-axis grinding and polishing machines. Complex shapes on lenses G&H has a unique capability of manufacturing complex shapes on lenses, such as step profiles or off-axis shapes. In addition to singlets, we also produce a wide variety of doublets, triplets, and more complex lens assemblies. Our extensive metrology equipment investments guarantee that our customers receive high-performing, quality products. Environmental testing We offer guarantees for adhesion, abrasion, humidity, and temperature, with on-site environmental testing available. Other tests are also available upon request, making us a reliable partner for high-quality and custom precision lenses. Manufacturing in the UK Extensive range of visible and IR materials APPLICATIONS Laser rangefinders Direct energy weapons Missiles Satellites Airplanes KEY METROLOGY QED stitching interferometer Interferometers ranging 4" to 18" White light interferometer Talysurf PGI 1240 / 1250 Trioptics Opticentric Dual 8 | sales@gandh.com G&H KEY EQUIPMENT 3x Moore Nanotech 250 & 1x 450 Satisloh SPM/SPS 30, 60, & SPM125 Optotech SM/SPK 50, 100, & 150 Satisloh C-50 & 300 freeform centering Q-Flex magnetorheological finishing (MRF) LENSES - GLASS Dimension Dimension tolerance Radius Form error Surface quality Substrate sample LENSES - IR Dimension Dimension tolerance Radius Form error Surface quality Substrate sample ASPHERICS - GLASS Dimension Dimension tolerance Radius Form error Surface quality Substrate sample ASPHERICS/DIFFRACTIVE/HYBRID- IR Dimension Dimension tolerance Radius Form error Surface quality Substrate sample Precision 6 - 250mm High Precision 6 - 150mm ±0.05 ±0.025 5.0mm to infinity / 4 / 10 40 - 20 10 - 5 Fused silica, Schott, Ohara, CDGM, Hoya, Hikari Precision High Precision 4 - 300mm 4 - 200mm ±0.05 ±0.025 3.0mm to infinity / 4 / 10 40 - 20 20 - 10 Silicon, germanium, ZnSe, ZnS, CaF2, BaF2, chalcogenides Precision 6 - 60mm High Precision 6 - 50mm ±0.1 ±0.05 5.0mm to infinity / 2 / 4 40 - 20 20 - 10 Fused silica, Schott, Ohara, CDGM, Hoya, Hikari Precision High Precision 4 - 300mm 4 - 100mm ±0.05 ±0.025 3.0mm to infinity / 2 / 4 40 - 20 20 - 10 Silicon, germanium, ZnSe, ZnS, CaF2, BaF2, chalcogenides For more information on LENSES, visit www.gandh.com/precision-lenses gandh.com | 9 WINDOWS Optical windows are a critical component in a variety of applications which require minimal optical impact with maximum mechanical separation between two environments. Our high-quality optical windows demonstrate exceptional parallelism, very low surface roughness, minimal transmitted and reflected wavefront errors, and high optical transparency in the operational wavelength range. The choice of window material depends on environmental factors like acidity of the atmosphere, strong vacuums, high pressures, or high temperatures, as well as the operational wavelength range. Our optical windows are utilized in lasers, testing chambers, and other systems where the environment on one side may be pressurized, filled with a specific gas, or otherwise need to be chemically separated from the other. We provide defense-grade windows that are not only significantly larger but also coated with diamond-like coatings to withstand abrasive environments, particularly in the desert. Windows for industrial and defense applications High parallelism, low surface roughness, low transmitted and reflected wavefront errors Optically transparent at the operational wavelength range Dimension Dimension tolerance Flatnesss Surface quality Parallelism Coating options Substrate options Precision 5 - 500mm High Precision 5 - 100mm ±0.1 ±0.01 / 8 / 20 40 - 20 10 - 5 ±1 arcmin ±2 arcsec High LDT, high transmission, broadband or V-coat anti-reflection, DLC & ITO Fused silica, glass, Ge, silicon, sapphire, ZnS APPLICATIONS Lasers Testing chambers Military vehicles KEY METROLOGY White light interferometers 6" & 18" Zygo interferometers (1/50th wave accuracy flatness RWE & TWE) CNC Smartscope Heidenhain CT60 KEY EQUIPMENT & PROCESSES Q-Flex magnetorheological finishing (MRF) Lap Master Wolters AC1500-L Engis high pressure lap polisher 18" - 48" lap polishers Optical contacting 10 | sales@gandh.com For more information on WINDOWS, visit gandh.com/optical-windows-and-flats WAVEPLATES From crystal growth, crystal orientation and cutting, to waveplate fabrication and coating, no other waveplate supplier has as much control over the fabrication stages as G&H. As the world's only entirely vertically integrated CdS, CdSe, and KDP waveplate producer, we deliver accurate performance for demanding applications. Our control over crystal growth benefits customers who need larger sizes, high laser damage threshold performance, or more accurate retardation tolerances. For all wavelength ranges, we orient, cut, and polish the optical crystals for waveplate production. Polishing, coating, assembly, and metrology complete the manufacturing process. G&H has IS09001 certifications across all manufacturing facilities and AS9100C certifications across select facilities. The world's only entirely vertically integrated CdS, CdSe, and KDP waveplate producer From crystal growth to waveplate fabrication and coating Tight internal controls enable better retardation tolerances within and between production runs Dimension Dimension tolerance Flatnesss Surface quality Parallelism Types Wavelengths Substrate options UV-VIS, Precision UV-VIS, High Precision IR Waveplates 5 - 150mm 5 - 65mm 4 - 29mm ±0.1 ±0.01 ±0.01 / 5 / 20 / 20 40 - 20 10 - 5 40 - 20 ±1 arcmin ±2 arcsec ±1 arcmin Multi order, zero order, achromatic 193nm - 2µm 3µm - 12µm Crystal quartz, Mgf2, sapphire CdS, CdSe, CdS/CdSe stack APPLICATIONS Optical isolation Laser power control and attenuation Polarimetry Remote sensing Surveillance Fusion laser systems KEY METROLOGY 6" & 18" Zygo interferometers (1/50th wave accuracy flatness RWE & TWE) Heidenhain CT60 Spectrometers KEY EQUIPMENT & PROCESSES Optical contacting Lap Master Wolters AC1500-L Engis Hyprez high pressure lap polisher 18" - 48" lap polishers For more information on WAVEPLATES, visit www.gandh.com/waveplates gandh.com | 11 LENS ASSEMBLIES & SIGHTS G&H possesses extensive capabilities in optical design, engineering, prototyping, and production. Its team of skilled optical engineers employ state-of-the-art computer-aided design (CAD) tools to create precise and efficient optical solutions. The company's contemporary manufacturing facility is equipped with advanced production and testing equipment, which enables efficient and high-quality production of optical systems. These systems incorporate various optical components, including lenses, mirrors, and other elements, to produce complete systems tailored to meet specific customer needs. Our team of experts has earned a reputation as a trusted industry leader, delivering innovative and state-of-the-art optical solutions to a diverse customer base. We collaborate closely with each client to comprehend their distinct application and devise a personalized solution to address their needs. Our experts are capable of providing guidance and assistance to your organization in several areas, such as optical and opto-mechanical design, prototyping, and system production, among others. Proof of concept feasibility studies Prototyping In-house assembly and testing Managed production Project and program management We provide both off-the-shelf and custom lens systems that are compatible with a broad range of commercial cameras and sensors. Our off-the-shelf lens systems are proven solutions with a low lead times, please contact us for the current stock list. If our off-the-shelf products don't meet your requirements, please get in touch with us and we will help you to find a solution. VIS, SWIR, MWIR, and LWIR zoom assemblies Standard vision block periscope systems Electronic, fused, and reversionary periscope systems Sabre family of multi-sensor sighting systems DEW mechanical assemblies APPLICATIONS Armored vehicles, including Challenger 3 and AJAX UAV gimbals and C-UAS Intelligence, surveillance, and reconnaissance (ISR) Space imaging KEY EQUIPMENT & PROCESSES Opto-mechanical design Opto-electrical design Sensor integration MWIR interferometers 12 | sales@gandh.com FIREANT SWIR Wavelength Focal length f / # (constant through zoom) Image diameter (diagonal) Configurations NFOV (1280, 10µm px; 640, 15µm px; 640, 10µm px) WFOV (1280, 10µm px; 640, 15µm px; 640, 10µm px) Operating temperature AR coating P/N SR4153, SR4936 0.9 - 1.7µm P/N SR5037 0.8 - 1.7µm 4 -400mm 5.6 80 - 800mm f / 6.0 16.4mm Straight, folded 16.4mm Straight 1.83°, 1.37°, 0.92° 18.2°, 13.7°, 9.1° 0.92°, 0.69°, 0.46° 9.1°, 6.9°, 4.6° -30° - 80°C High-durability per MIL-PRF-13830 NIGHTCRAWL MWIR Focal length NFOV (1280, 10µm px) NFOV (640, 15µm px) WFOV (1280, 10 µm px) WFOV (640, 15µm px) f / # Waveband Image format Cold stop height Average transmission BWD (in air) SR3823-A01 42 - 850mm 0.86° 0.65° 17.3° 13.0° SR3822-A01 SR3821-A01 33 - 660mm 21 - 420mm 1.11° 1.75° 0.83° 1.31° 22.0° 33.9° 16.6° 25.8° 4.0 3.4 - 5.0µm 16.4mm diagonal 19 - 22mm 82% 27.12mm SR3820-A01 16.5 - 330mm 2.22° 1.67° 42.4° 32.4° FIXED FOCAL GhostSight Wavelength 0.45 - 1.7µm f / # Varies Fuschia Ruby 0.9 - 1.7µm 3 - 5µm Varies 2.3 VAPIR Titan 3.2 - 3.7µm Uncooled LWIR 1.5 1.2, 1.6 Crimson Cooled LWIR 2.0 Diablo 3 - 12µm 2.0 Cardinal 1.5 - 5µm 2.3 Superband 0.72 - 5µm 2.3, 2.5 ¹ Titan focal length - HFOV (°) - 10, 17.5, 40, 60, 90 ² Crimson focal length - HFOV (°) - 180 ³ Diablo focal length - HFOV (°) - 90, 180 Focal Length (mm) 25, 50, 100, 500 13, 25 13, 25, 100, 200 25, 50, 100 25 - 140¹ 9.7, 25, 50, 100, 200² 25, 50, 100, 200³ 25, 50, 100, 200 25, 50, 100, 200 Image Diameter (mm) 12, 16.4, 21 12.3, 21 21 12.3 21.17 21 21 21 12.5, 16 For more information on LENS ASSEMBLIES & SIGHTS, visit gandh.com/products gandh.com | 13 POLYMER OPTICS G&H manufactures custom precision polymer optical components, including integrated features, for photonics applications. Our customers use our products in illumination, imaging, scanning, and detection applications. The various markets we support include medical device, AR/VR/HUD, defense, and machine vision. The G&H engineering and production staff provide guidance with optics, mechanical design, design for manufacturability, single point diamond turning, injection molding, thin film coating, assembly operations, and metrology to ensure customer program moves from concept to market in minimal time and on budget. Focal length (%) Radius of curvature (%) Power (fringes) Irregularity (fringes / 10mm) Scratch / dig Center thickness (mm) Flange diameter (mm) Concentricity (mm) Center to edge thickness ratio Surface roughness (Å RMS) Standard ±5 ±3 - 5 10 4 80 / 50 ±0.1 ±0.1 0.1 1:1 <75 Precision ±2 ±2 - 3 5 2 60 / 40 ±0.05 ±0.05 0.05 3:1 <60 APPLICATIONS Illumination Imaging Scanning Detection KEY METROLOGY Bruker® Contour GT-K1 3D Optical Microscope Zygo VerifireTM XPZ interferometer Zeiss Micura CMM with VAST XT Gold Sensor Zeiss Surfcom 3000A Mitutoyo Bright 504 CMM OGP Flash 302 Wells Research OS210B Optical Tests Bench KEY EQUIPMENT 18 molding systems from 30 to 220 tons capacity producing part diameters from 3 - 150mm Preitech Nanoform 200 and NanoX system can be used to manufacture elements up to 200mm in diameter Fully automated CITATION ITM precision optical box coater 1,000 ft² class 10,000 clean room (ISO 7) 14 | sales@gandh.com For more information on POLYMERS, visit www.gandh.com/polymer-optics FILTERS & COATINGS Thin-film optical coatings from 193nm - 14µm 40 coating chambers globally Manufacturing in the UK and US Capabilities include narrow bandpass, notch, mirror, AR, beamsplitter, and DLC OPTICAL COATING CAPABILITIES Dimensions (diameter or square) Reflectivity Anti-reflective wavelength range Highly-reflective wavelength range DLC Hard Carbon wavelength Shortpass filter cut-off wavelength Longpass filter cut-on wavelength Bandpass filter CWL, OD, and bandwidth Notch filter CWL Reflective ND filter OD Filter center wavelength (CWL) tolerance Filter edge tolerances Beamsplitter (BS) wavelength range BS polarization extinction ratio (S:P) Laser damage threshold (LDT) Durability 2 - 600mm 0.1 - 99.999% 193 - 14,000nm 248 - >40,000nm 3-5µm & 8-12µm on Ge, Si and ZnSe 400nm - 12.5µm 240nm - 12.5µm 193 - 10,600nm, >OD 7, 1nm - Broadband 355 - 1064nm OD 0.1 - OD 4 ±1nm <1% deviation, <0.2% special cases 355 - 2,500nm 500:1 >60 J/cm² @ 1064nm @ 20ns @ 20Hz pulses, measured MIL-PRF-138308 APP C, PARA C3.8.4, C.3.8.5, MIL-C-48497A, MIL-C- 48497a, ISO 9211, ISO 9022 APPLICATIONS AFV periscopes Aviation cockpits Ophthalmic surgery equipment Satellite payloads Industrial laser welding Laser scanning KEY METROLOGY UV, VIS, and IR spectrometers 4 point conductivity probe MIL standard temperature and humidity chambers KEY EQUIPMENT & PROCESSES Thin-film design including bespoke HUD design software PVD, CVD, and IBS coating platforms Laser test to MILT-DTL-62422 TS1888 DLC test bench For more information on COATINGS, visit gandh.com/optical-coatings gandh.com | 15
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