Large Core Optical Fibers （Energy Transmission, Signal Transmission） Fujikura's large core optical fibers are made of silica glass, thus have excellent transmission characteristics over the selected wavelength range, one is from UV to VIS, the other is from VIS to NIR. Moreover with its large core size it also can transmit high energy density of laser beam, which is demanded for applications of laser processing, laser therapy, optical sensors and spectral analyzers of weak light. Contact us here for inquiries. contact us Features Product Lineup Applications Specifications Features The large core optical fiber is made of pure silica showing various features for optical applications as follows; High Energy Density of Optical Transmission Excellent Optical Transmission Characteristics with the Wavelength Range Selectively from UV to VIS and from VIS to NIR. Mechanical Strength Heat Resistance Radiation Resistance UV Resistance Applicable for Biocompatibility (USP classⅥ) Product Lineup Large core optical fibers are provided with two types of optical transmission characteristics and also with two types of basic structures, which are utilized for various types of optical fiber applications. [Product Lines by Transmission Characteristics] S series Core Type: Step Index, High -OH Content Low Transmission Loss at the Wavelength Range from UV to VIS SB series Core Type: Step Index, Low -OH ContentLow Transmission Loss at the Wavelength Range from VIS to NIR The optical transmission characteristics of each of S and SB series are shown below. [Product Lines by Structures] Jacketed Optical Fiber: Coated with Polyamide. If FEP, PFA, etc. are required, please contact us. The basic structures of Larege Core Fibers are shown below. * For high temperature environment (upto 300℃) application, optical fiber coated with polyimide is provided. Applications Laser Processing (Cutting, Welding) Laser Peening Laser Therapy Optical Lithography Radiation Thermometer Spectral Analysis, Fluorometric Analysis Laser Excitation Lighting * Please contact us for custom designing, prototyping and manufacturing of large core fiber products. Specifications S series (for UV-VIS) ModelName Refractive IndexProfile Core / CladdingMaterial Core / Cladding Diameter[μm] Jacket Diameter[μm] Attenuation[dB/km] Coating / JacketMaterial NA Operation Temperature[°C] Minimum Bending Radius[mm] S.200/220 Step Index SiO2 (High-OH)/ F-SiO2 200 / 220 900 ≤10(@800nm) Silicone /Polyamide 0.22 -20 to 60 44 S.400/440 400 / 440 1100 88 S.600/660 600 / 660 1400 132 S.800/880 800 / 880 1700 176 S.1000/1100 1000 / 1100 2000 220 S.1500/1650 1500 / 1650 2400 330 SB series (for VIS-NIR) ModelName Refractive IndexProfile Core / CladdingMaterial Core / Cladding Diameter[μm] Jacket Diameter[μm] Attenuation[dB/km] Coating / JacketMaterial NA Operation Temperature[°C] Minimum Bending Radius[mm] S.200/220B Step Index SiO2 (Low-OH)/F-SiO2 200 / 220 900 ≤10 (@850nm Silicone /Polyamide 0.22 -20 to 60 44 S.400/440B 400 / 440 1100 88 S.600/660B 600 / 660 1400 132 S.800/880B 800 / 880 1700 176 S.1000/1100B 1000 / 1100 2000 220 S.1500/1650B 1500 / 1650 2400 330 G series (for VIS-NIR) ModelName Refractive IndexProfile Core / CladdingMaterial Core / Cladding Diameter[μm] Jacket Diameter [μm] Attenuation[dB/km] Coating / JacketMaterial NA Operation Temperature[°C] Minimum Bending Radius[mm] G.200/250 Graded Index GeO2-SiO2 /SiO2 200 / 250 900 ≤10 (@850nm) Silicone /Polyamide 0.21 -20 to 60 50 G.400/500 400 / 500 1100 100 G.600/750 600 / 750 1400 150 G.800/1000 800 /1000 1700 200 Large Core Fiber : SB series (for VIS-NIR) High temperature resistant type ModelName Refractive IndexProfile Core / CladdingMaterial Core / Cladding Diameter[μm] Coating Diameter[μm] Attenuation[dB/km] CoatingMaterial NA Operation Temperature[°C] Minimum Bending Radius[mm] S.200/220BPI Step Index SiO2 (Low-OH)/F-SiO2 200 / 220 245 ≤10 (@850nm) Polyimide 0.22 -40 to 300 44 S.300/330BPI 300 / 330 360 66 S.400/440BPI 400 / 440 470 88 Contact us here for inquiries. contact us Catalog (PDF387KB)
