AGI Graded Index MM Fibers

300 - 2400 nm; low numerical aperture; Max Operating Temperature 85 °C; Core Diameter 50 µm; Coating Outside Diameter 250 µm Step Index multi mode fiber with pure fused silica core and fluorine doped silica cladding. With a low concentration of hydroxyl groups (OH), this fiber of the Anhydroguide™ series from Fiberguide Industries is suitable for wavelengths in the visible to infrared domain. It is primarily used in photonics applications where individual or bundled large core (> 50μm) multi mode fibers are needed for the transmission of optical energy.This “AFM” fiber features a low numerical aperture (0.12), resulting in a full acceptance angle of 14°. With a cladding diameter of 140 µm and a silicon buffer coating layer, the minimum bend radius recommended by the supplier is 13 mm (short term) or 25 mm (long term) respectively. The fibers are 100% proof tested using a 4-axis bend method with 100 KPSI. Typical applications are bio-analytical sensing, medical lasers, aerospace/defense, spectroscopy, nuclear plasma sensing or industrial laser systems.

Aluminium Coated, Single Mode, Multi Mode; 190 to 2400 nm; Core Diameter 50 to 400 µm; Mode Field Diameter 4.3, 9.0 µm; Cladding Diameter 125 to 440 µm; Numerical Aperture 0.12 to 0.275 Fiberguide’s AFS-A/SFS-A/AGI-A/ASI-A/UVS-H2A series of aluminium coated fibers are designed for a wide temperature range (-269 to +400 °C) and superior strength (>100 kpsi). This allows for long life at extended stress levels in applications that require tight bends. Also, the strong chemical bond between the silica cladding and the aluminum enables direct termination without pistoning. This bond also makes aluminium coating the ideal choice to preserve deep UV performance in Fiberguide’s Solarguide UVS-H2A series of solarization resistant UV multi mode fiber. Within this series of aluminium coated high temperature fibers, users find step index (AFS/SFS, UVS-H2) and graded index (AGI) multi mode fibers as well as anhydrous silica (ASI) single mode fibers. As an option, some types of aluminium coated high temperature fibers can be provided with a broad selection of shaped tips – standard configurations as well as custom designed shapes. Shaped tip fibers provide optimum control over beam delivery and/or increased efficiency of light collection. Some of the fibers can also be end capped to achieve higher coupled power into a fiber core by reducing the power density at the air / silica interface, commonly the point of laser damage. End cap diameters and lengths are offered for select numerical apertures and fiber cores size, but can be easily customized for a variety of fiber types and specialized applications. Additionally, all fiber types can be equipped on demand with Fiberguide’s patented RARe Motheye anti-reflective technology that enhances fiber transmission performance and significantly increases the damage threshold for your application over a large wavelength range. Key Features: Multi Mode (Step/Graded Index) or Single Mode Fibers Pure Fused Silica Core, Fluorine Doped/Pure Silica Cladding Coating: Aluminium Core / Cladding Sizes: 50/125 to 400/440 µm (MM) Mode Field Diameter / Cladding Sizes: 4.3/125, 9.0/125 µm (SM) Numerical Aperture (NA): 0.12 to 0.275 Recommended Bend Radius: Short Term 100 x Clad Diameter, Long Term 200 x Clad Diameter 100% Proof Test Using 4-Axis Bend Method Applications: High Temperature and Cryogenic Temperature Sensing; Semiconductor Manufacturing; Corrosive and Caustic Environments; Ultra-high Vacuum Devices; Radiation Resistant Sensors; Rocket, Turbine and Jet Engine Monitoring

Gold Coated, Single Mode, Multi Mode; 190 to 2400 nm; Core Diameter 50 to 400 µm; Mode Field Diameter 4.3, 9.0 µm; Cladding Diameter 125 to 440 µm; Numerical Aperture 0.12 to 0.275 Fiberguide’s AFS-G/SFS-G/AGI-G/ASI-G series of gold coated high temperature optical fibers is designed to achieve the widest temperature range (-269 to +700 °C) of any optical fiber on the market. This, combined with excellent corrosion resistance, and the fiber’s ability to be soldered or brazed, makes it the ideal fiber for many high temperature applications such as turbine flame monitoring, oil and gas down-hole sensing, and high vacuum or pressure applications. As an option, some types of gold coated high temperature fibers can be provided with a broad selection of shaped tips – standard configurations as well as custom designed shapes. Shaped tip fibers provide optimum control over beam delivery and/or increased efficiency of light collection. Some of the fibers can also be end capped to achieve higher coupled power into a fiber core by reducing the power density at the air / silica interface, commonly the point of laser damage. End cap diameters and lengths are offered for select numerical apertures and fiber cores size, but can be easily customized for a variety of fiber types and specialized applications. Additionally, all fiber types can be equipped on demand with Fiberguide’s patented RARe Motheye anti-reflective technology that enhances fiber transmission performance and significantly increases the damage threshold for your application over a large wavelength range. Key Features: Multi Mode (Step/Graded Index) or Single Mode Fibers Pure/Germanium Doped Fused Silica Core, Fluorine Doped/Pure Silica Cladding Coating: Gold Core / Cladding Sizes: 50/125 to 400/440 µm (MM) Mode Field Diameter / Cladding Sizes: 4.3/125, 9.0/125 µm (SM) Numerical Aperture (NA): 0.12 to 0.275 Recommended Bend Radius: Short Term 100 x Clad Diameter, Long Term 200 x Clad Diameter 100% Proof Test Using 4-Axis Bend Method Applications: Turbine Flame Monitoring; Oil and Gas Down-hole Sensing; High Vacuum Applications; High Pressure Applications

Multi Mode; 190 to 2400 nm; Core Diameter 50 to 1500 µm; Cladding Diameter 125 to 1650 µm; Coating Acrylate, Polyimide, Nylon, Tefzel, Aluminium, Gold; Numerical Aperture 0.12, 0.22, 0.26 Fiberguide’s Anhydroguide™ (AFS/AFM/AFH) and Superguide™ (SFS/SFM/SFH) silica core, silica clad, polymer coated multi mode fibers are primarily used in photonics applications where individual or bundled large core (>50 µm) multi mode fibers are needed for the transmission of optical energy. These fibers can be coated with a variety of polymers or even metalized with aluminium or gold for extreme temperature performance. While the AFS series features a low hydroxyl ion concentration (low OH) and works in the visible to IR range, SFS variants with high hydroxyl ion concentration are suitable for the UV to visible range. Options include Acrylate (-Y), Polyimide (-T), Nylon (-N), Tefzel (-Z), Aluminium (-A) and Gold (-G) coatings as well as standard (AFS/SFS), high (AFH/SFH) and low (AFM/SFM) numerical aperture. As a further option, fibers can also be provided with a broad selection of shaped tips – standard configurations as well as custom designed shapes. Shaped tip fibers provide optimum control over beam delivery and/or increased efficiency of light collection. Some fiber types can also be end capped to achieve higher coupled power into a fiber core by reducing the power density at the air / silica interface, commonly the point of laser damage. End cap diameters and lengths are offered for select numerical apertures and fiber cores size, but can be easily customized for a variety of fiber types and specialized applications. Additionally, all fiber types can be equipped on demand with Fiberguide’s patented RARe Motheye anti-reflective technology that enhances fiber transmission performance and significantly increases the damage threshold for your application over a large wavelength range. Key Features: Step Index Multi Mode Fibers Pure Fused Silica Core / Fluorine Doped Silica Cladding Silicone Buffer Coating Layer for Nylon & Tefzel Outer Coatings Coatings Acrylate, Polyimide, Nylon, Tefzel, Aluminium, Gold Core / Cladding Sizes: 50/125 to 1500/1650 µm Wavelengths: SFS (High OH) 190 to 1250 nm; AFS (Low OH) 300 to 2400 nm Numerical Aperture (NA): 0.12, 0.22, 0.26 Recommended Bend Radius: Short Term 100 x Clad Diameter, Long Term 200 x Clad Diameter 100% Proof Test Using 4-Axis Bend Method Available Core/Clad Ratios: 1.1 (Standard), 1.2, 1.4, 2.5 Thermocoat (Polyimide), Nylon, Tefzel certified to NAMSA Class VI Applications: Bio-Analytical Sensing; Medical Laser; Aerospace/Defense; Spectroscopy; Nuclear Plasma Sensing; Industrial Laser Systems

The Anhydroguide™ fiber is drawn from preforms manufactured by the Plasma Outside Deposition (POD) process,

Multi Mode; 190 to 2400 nm; Core Diameter 200 to 900 µm; Cladding Diameter 240 to 1000 µm; Coating Tefzel (Natural & Blue); Numerical Aperture 0.22 Fiberguide’s Anhydroguide™ (AFSH) and Superguide™ (SFSH) series of silica core, silica clad, hard polymer coated, polymer outer coated multi mode fibers are similar to Fiberguide’s AFS/AFM/AFH/SFS/SFM/SFH series of silica core, silica clad, polymer coated MM fibers, except there is an added layer of hard polymer on top of the silica cladding. This hard coat serves as stable buffer layer that ensures a sufficient bond between the silica cladding and the polymer outer coating, making these fibers the ideal choice for a variety of medical applications. Other main application areas for the AFSH/SFSH series of hard polymer coated fibers are where individual or bundled large core (>50 µm) multi mode fibers are needed for the transmission of optical energy. While the AFSH series features a low hydroxyl ion concentration (low OH) and works in the visible to IR range, SFSH variants with high hydroxyl ion concentration are suitable for the UV to visible range. Options include natural (-Z) or blue (-C) Tefzel coatings, and fibers can be provided with a broad selection of shaped tips – standard configurations as well as custom designed shapes. Shaped tip fibers provide optimum control over beam delivery and/or increased efficiency of light collection. Some fiber types can also be end capped to achieve higher coupled power into a fiber core by reducing the power density at the air / silica interface, commonly the point of laser damage. End cap diameters and lengths are offered for select numerical apertures and fiber cores size, but can be easily customized for a variety of fiber types and specialized applications. Additionally, all fiber types can be equipped on demand with Fiberguide’s patented RARe Motheye anti-reflective technology that enhances fiber transmission performance and significantly increases the damage threshold for your application over a large wavelength range. Key Features: Step Index Multi Mode Fibers Hard Polymer Buffer Coating Layer Coating: Tefzel (Natural or Blue) Core / Cladding Sizes: 200/240 to 910/1000 µm Wavelengths: SFSH (High OH) 19 to 1250 nm; ASFH (Low OH) 300 to 2400 nm Numerical Aperture (NA): 0.22 Recommended Bend Radius: Short Term 100 x Clad Diameter, Long Term 200 x Clad Diameter 100% Proof Test Using 4-Axis Bend Method Tefzel (Natural & Blue) certified to NAMSA Class VI Applications: Bio-Analytical Sensing; Medical Laser; Aerospace/Defense; Spectroscopy; Nuclear Plasma Sensing; Industrial Laser Systems  

Fiber Type Single Mode, Multi Mode Step & Graded Index; Input Core Diameter 100 to 600 µm; Output Core Diameter 50 to 200 µm; Numerical Aperture 0.12, 0.26; Wavelength 180 to 2400 nm; Sheathing PVC, Stainless Steel Fiberguide’s AFT/SFT series of optical tapers are used for mode mixing, lowering optical power density in high power applications, and converting numerical aperture (NA) in optical power delivery applications. Optical tapers can either be tower drawn, where the length is several meters, or they can be produced using bench-top equipment, making the length a few inches. In both cases, these optical tapers are continuous pieces of fiber, they are not spliced. Tapered optical fibers can be made either by fusing a short tapered section onto a longer fixed diameter fiber or by very carefully controlling the drawing process to produce a single continuous fiber with an integral tapered section. For its AFT/SFT series, Fiberguide uses the latter process since it results in superior fiber strength, alignment precision and optical power transmission. Tapered optical fibers cause optical mode mixing that tends to homogenize spatial power distribution. A larger input core diameter can prevent input damage and allow a smaller diameter pigtail for convenience in adapting to a wide range of optical applications. Tapered optical fibers can be used as a passive optical component to alter the input and / or output divergence (N.A.) with regard to an optical fiber, as a high power coupler for laser energy, as this will spread the energy over a larger area, or simply as a device to relax tolerances in an optical system. To ensure maximum efficiency of light transmission, the numerical aperture (N.A.) of the light entering the taper input should be 0.22 divided by the taper ratio. As an example, assume the input core diameter of the taper is 400 µm and the output core is 200 µm (2:1 taper ratio), then the N.A. of the light entering the taper will be 0.22/2 = 0.11. Additionally, the fibers can be equipped on demand with Fiberguide’s patented RARe Motheye anti-reflective technology that enhances fiber transmission performance and significantly increases the damage threshold for your application over a large wavelength range. Key Features: Fiber Type: Single Mode, Multimode Input Core Sizes: 100 to 600 µm Wavelengths: 190 to 1250 (High OH), 300 to 2400 nm (Low OH ) Numerical Aperture (NA): 0.12, 0.22, 0.26 Input-to-Output Ratios: Up to 3:1 Connector Options: SMA905 Sheathing Options: PVC Tubing, Stainless Steel Monocoil (Tower Drawn Tapers), Rigid Stainless Steel Tubing (Micro Tapers) Coating: Acrylate Length: Minimum Taper Length 2 m, Overall Length <50 m (Tower Drawn Tapers), ~ 6 inches Typical (Micro Tapers) Applications: Laser Marking, Welding, Soldering; Fluid Level Sensors; Laser Surgery, Angioplasty, Lithotripsy; Non-linear Optics; Diode Laser Array Coupling; Spectroscopy; Analytical Instruments; Laser Delivery; Biosensors; Near-field Scanning Optical Microscopy\Raman and IR Spectroscopy; Humidity Sensing; Delivery Systems for Laser Diodes; High-power Laser Transmittance; Dynamic Position Sensing; Fluorescent Detection