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With 59 Gratings-related patents, OFS is a leader in the creation and production of fiber Bragg gratings. We offer a full array of FBG types, such as Stablizer gratings, High Reflector Gratings, Wide Band gratings, Long Period gratings, and Fiber Arrays. We’ve developed capabilities for write-through coatings, where the acrylate does not need to be stripped from the fiber in order to write a grating, and we’ve recently developed the ability to write gratings in high-temperature fibers coated with our proprietary high-temperature PYROCOAT™ polyimide.
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Holographic gratings for spectroscopic application.
Grating constants of up to 4000 lines/mm can be produced. Dimensions of up to 60 mm apertures with active optical wavelengths from 200 nm to 800 nm are available. These gratings show high performing surfaces with very precise line shapes and transmission for better spectral performance.
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Teledyne Scientific & Imaging fabricates and manufactures Silicon microlenses using advanced processing techniques. We use Reflow and Grayscale fabrication methods to achieve high quality, cost efficient microlenses. Reflow involves patterning polymeric materials on substrates and then melting the polymer to form ideal spherical surfaces. Lenses produced by this method have a wide range of design parameters and numerical apertures, and aspheric design over many conic values.
Grayscale photolithography is used in fabricating asymmetric micro-optic structures. This technique enables complex optical structures to be fabricated including full fill-factor lens arrays, kinoform and Fresnel lens patterns, concave and off-axis lenses, and diffraction gratings.
Refractive and diffractive microlens arrays and optical components
Variety of materials including Silicon Quartz (fused Silica), many III-V or II-VI semiconductor and polymeric materials
Reflow and Grayscale fabrication
ISO 9001 certified manufacturing operation at RSC including a variety of plasma etch/mill tools
Class 100 cleanroom facilities, diagnostic instruments, including phase-shifting interferometric surface profilers, AFM, SEM, and TEM instruments
Expert staff with knowledge of materials, optical design, modeling, and manufacture process engineering
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This type of grating is the holographic counterpart of the classically ruled concave grating, invented by Rowland in the 19th century. The Rowland grating has straight grooves which are equally spaced along a chord of the concave surface.
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Fiber Bragg Gratings (FBGs) have quickly established themselves as one of the key enabling technologies behind the 'DWDM Revolution'. EDFA gain-equalising filters, WDMs and add-drop multiplexers, created as periodic variations in the refractive index of the core of the fiber itself, have all played their part in delivering almost unlimited bandwidth - and in accelerating the transition of the entire telecommunications industry from a digital electronic to a digital photonic world.
FBGs can also be used in the fabrication of optical strain and temperature sensors, with quasi-distributed measurements possible using gratings written sequentially into a continuous length of fiber.
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Laser tuning gratings are holographic gratings specially designed for wavelength tuning of lasers, such as dye lasers, Ti-sapphire, or external cavity diode lasers. The groove depth is optimized to yield maximum efficiency for one state of polarization.
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The gratings are holographically recorded with two highly collimated, clean and homogeneous beams, which give straight and equispaced grooves. The diffracted light from these gratings is free from ghost spectral lines. The randomly scattered light is as low as that from a good front surface aluminium mirror.
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These gratings are especially suited for use in laser pulse compression experiments. High diffraction efficiency, in combination with good spectral quality and high damage resistance makes these gratings useful in all kinds of laser pulse applications; both pulse compression using optical fibre grating pairs, and for amplification of pulses with chirped pulse amplification.
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Spectrogon manufacture high quality, holographically recorded, blazed profile gratings specifically for use in the UV region of the spectrum. These gratings are available in a range of groove densities between 300-2400 gr/mm. All are nominally blazed at 220 nm in the Littrow configuration. The processes used to manufacture these UV gratings were developed for use in making gratings for the soft x-ray region (1-10 nm) and are therefore designed to have very low stray and scattered light.
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Mat EM 1002 with densities of 100, 150, 225 g/m2 is manufactured from chopped strands made of glass fibre bound together with an emulsion binder and drawn from E glass containing less than 1% of alkalies. The diameter of filament is 9 µm. The mat has a reduced strand linear density (tex) and the surface weight (density) comparing to the standard emulsion mat. It is very soft and it sets very well in a mould taking perfectly its very complicated shapes. It is characterised by a medium wet-out rate in a non-saturated polyester resin and by a good ability to remove air in the process of lamination.
Application
Emulsion bound mat EM 1002 with surface weights of 100 g/m2,150 g/m2 225 g/m2 is suitable for making laminates in a contact process. It is used with all types of non-saturated polyester resins for manufacturing products reinforced with glass fibre. It suites especially for manufacturing gel coated products as their reinforcement. It is also particularly recommended as the external layer of laminate in case of products with improved aesthetics of the surface.
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Key Issues:
Polymat has the ability to fill a closed mould cavity as one fabric
Polymat will cold mould to the contours of the tooling while maintaining bulk.
Width and weight variations can be addressed subject to order quantity.
Polymat is designed to provide glass reinforcement in the tension zones as well as allowing resin a medium for ease of flow through the mould tool.
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3B Continuous Filament Mat (CFM) is a non-woven mat made from Advantex™ filaments, consisting of continuous fibres randomly oriented in multiple layers. The glass fibre is bonded with silane coupling agent and the layers held together with a suitable binder.
3B offers two groups of CFM: powder mats and emulsion mats. Both groups provide end-users with different controls over rigidity, conformability, handling, wet-out and a range of tensile strengths.
CFM is particularly suitable for compression moulded electrical and non-electrical laminates as well as for pultrusion and infusion or injection processes (e.g. RTM, S-RIM or Matched Die Molding). CFM products contain an insoluble binder for unsaturated polyester, epoxy and polyurethane compatibility in unfilled or filled resin systems.
In certain applications, 3B CFM also shows good compatibility with polyurethane foams.
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| ... products without technical information |
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With 59 Gratings-related patents, OFS is a leader in the creation and production of fiber Bragg gratings. We offer a full array of FBG types, such as Stablizer gratings, High Reflector Gratings, Wide Band gratings, Long Period gratings, and Fiber Arrays. We’ve developed capabilities for write-through coatings, where the acrylate does not need to be stripped from the fiber in order to write a grating, and we’ve recently developed the ability to write gratings in high-temperature fibers coated with our proprietary high-temperature PYROCOAT™ polyimide.
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Fiber Bragg Gratings (FBGs) have quickly established themselves as one of the key enabling technologies behind the 'DWDM Revolution'. EDFA gain-equalising filters, WDMs and add-drop multiplexers, created as periodic variations in the refractive index of the core of the fiber itself, have all played their part in delivering almost unlimited bandwidth - and in accelerating the transition of the entire telecommunications industry from a digital electronic to a digital photonic world.
FBGs can also be used in the fabrication of optical strain and temperature sensors, with quasi-distributed measurements possible using gratings written sequentially into a continuous length of fiber.
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DENSORB Sorbents
High-performance absorption materials for containing and effectively absorbing leaking liquids.
Avoid unnecessary costs and effort!
Larger accidents are not always the most dangerous.
Small leakages can also endanger the environment and compromise safety in the workplace thus posing a hazard to the workforce. Avoid high costs for clearing debris, cleaning up and waste disposal, protect
yourself with DENSORB binding materials.
Spill kits in many different sizes suitable for all emergency situations imaginable and
wide range of absorbent rolls, mats, cushions, snakes, barrel cover, oil barriers, granules and practical accessories.
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For non-flammable petroleum spills, use PIG® Oil-Only Rolls.
Sometimes you simply need a mat to last longer and absorb more. With a super-thick bottom and super-tough top, FAT MAT™ Rolls are perfect for hard-to-reach areas, wet walkways, big cleanups or any other job requiring long life and high capacity!
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