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3.5um SM HI 980 near infrared communication fiber
3.5μm SM HI 980 near infrared communication fiber is a high-performance single mode optical fiber optimized for 980nm transmission. Designed for laser delivery, optical sensing, spectroscopy, biomedical systems, and precision near-infrared photonic applications.
Parameter | Index |
Operation wavelength | >980nm |
Central numerical aperture | 0.22 |
MFD | 4.0±0.3@980nm 6.3±0.3@1550nm |
Cut off wavelength | 930±40nm |
Central attenuation | ≤2.5@980nm,≤1.0@1550nm |
Cladding diameter | 125±0.5 |
Internal diameter | 3.4u |
Coating diameter | 245±10um |
Core cladding compensation | ≤0.3um |
Operation wavelength | -60~85℃ |
Strength test level | 100 or 200 kpsi |
Wave guide bending loss | ≤0.01（@20nm O.D 1550nm ) (dB/turn) |
Core refractive index | 1472@651nm |
Length | 500m , 1KM , 2KM , 5KM, 10KM |
- Parameters
Parameter | Index |
Operation wavelength | >980nm |
Central numerical aperture | 0.22 |
MFD | 4.0±0.3@980nm 6.3±0.3@1550nm |
Cut off wavelength | 930±40nm |
Central attenuation | ≤2.5@980nm,≤1.0@1550nm |
Cladding diameter | 125±0.5 |
Internal diameter | 3.4u |
Coating diameter | 245±10um |
Core cladding compensation | ≤0.3um |
Operation wavelength | -60~85℃ |
Strength test level | 100 or 200 kpsi |
Wave guide bending loss | ≤0.01（@20nm O.D 1550nm ) (dB/turn) |
Core refractive index | 1472@651nm |
Length | 500m , 1KM , 2KM , 5KM, 10KM |
3.5μm SM HI 980 Near Infrared Communication Fiber
3.5μm SM HI 980 Near Infrared Communication Fiber is a precision-engineered single mode optical fiber optimized for high-efficiency transmission in the 980nm near-infrared wavelength region. Designed with a tightly controlled 3.5μm core diameter and optimized refractive index profile, this specialty fiber provides stable single-mode propagation, excellent beam quality, and high coupling efficiency for demanding near-infrared photonic applications.
Unlike conventional telecom fibers optimized for 1310nm and 1550nm, HI 980 fiber is specifically designed for short-wavelength near-infrared systems where standard single mode fibers cannot provide optimal mode confinement or efficient coupling at 980nm.
The precisely controlled small-core structure enables true single-mode transmission at 980nm, making this fiber ideal for applications requiring stable optical output, low modal dispersion, and high-precision beam delivery.
3.5μm SM HI 980 fiber is widely used in:
- 980nm laser delivery
- Fiber optic sensing
- Biomedical optics
- Spectroscopy systems
- Scientific instrumentation
- Precision photonics
- Near-infrared optical communication
Product Features
1. Optimized for 980nm Near-Infrared Transmission Specifically designed for efficient optical transmission in the 980nm near-infrared wavelength band. | 2. True Single Mode Operation The 3.5μm core geometry ensures stable single transverse mode propagation at 980nm for reduced modal dispersion and precise optical output. | 3. High Coupling Efficiency Optimized mode field and numerical aperture improve coupling efficiency with 980nm laser diodes, detectors, and photonic devices. | 4. Excellent Beam Quality Provides stable Gaussian beam output for precision laser delivery and optical measurement systems. | 5. Low Attenuation at 980nm Engineered for reduced attenuation and efficient signal transmission in near-infrared applications. | 6. Precision Geometrical Control Tight control of core-cladding concentricity and cladding geometry ensures low splice loss and stable optical alignment. | 7. High Reliability Designed for stable long-term performance in demanding laboratory, sensing, and photonic systems. |
Product Applications
3.5μm SM HI 980 fiber is designed for precision near-infrared optical transmission and advanced photonic applications.
1. 980nm Laser Delivery Used for stable transmission of 980nm laser output in precision beam delivery systems. | 2. Optical Sensing Suitable for: Fiber optic sensing Interferometric sensing Precision monitoring Scientific optical instrumentation | 3. Biomedical & Medical Optics Widely used in: Biomedical diagnostics Optical probes Medical photonics Precision medical sensing | 4. Spectroscopy Systems Ideal for: Raman spectroscopy Fluorescence analysis Optical absorption systems Analytical photonic instrumentation | 5. Scientific Research Used in: Laboratory optics Precision photonics Research instrumentation Optical experiments | 6. Near Infrared Communication Suitable for specialty short-wavelength near-infrared optical communication systems. |
Geometry & optical characteristics:
- Core diameter 3.5um, cladding 125um.
- Operation wavelength 980-1600 um.
- Numerical aperture NA:0.21
Technical Parameter:
Parameter | Index |
Operation wavelength | >980nm |
Central numerical aperture | 0.22 |
MFD | 4.0±0.3@980nm 6.3±0.3@1550nm |
Cut off wavelength | 930±40nm |
Central attenuation | ≤2.5@980nm,≤1.0@1550nm |
Cladding diameter | 125±0.5 |
Internal diameter | 3.4u |
Coating diameter | 245±10um |
Core cladding compensation | ≤0.3um |
Operation wavelength | -60~85℃ |
Strength test level | 100 or 200 kpsi |
Wave guide bending loss | ≤0.01（@20nm O.D 1550nm ) (dB/turn) |
Core refractive index | 1472@651nm |
Length | 500m , 1KM , 2KM , 5KM, 10KM |
Product Advantages
- Optimized for 980nm near-infrared transmission
- Stable true single mode performance
- High coupling efficiency
- Low attenuation at 980nm
- Excellent Gaussian beam quality
- Tight geometrical tolerance
- Ideal for sensing, spectroscopy, and biomedical optics
- Suitable for advanced near-infrared photonic systems
Product Standards
3.5μm SM HI 980 Near Infrared Communication Fiber is manufactured and tested according to specialty optical fiber and precision photonics standards to ensure stable optical performance and long-term reliability.
Applicable Standards IEC 60793-2-50 IEC 60793-1 series Telcordia GR reference testing ITU-T reference geometry control RoHS Compliance REACH Compliance | Quality Assurance Tests Core Diameter Test Cladding Diameter Test Numerical Aperture Test Attenuation Test @ 980nm Mode Field Diameter Test Cutoff Wavelength Test Coating Diameter Test Proof Test Core-Cladding Concentricity Tes |
Why Choose Our 3.5μm SM HI 980 Fiber?
Our 3.5μm SM HI 980 Near Infrared Communication Fiber is designed for precision optical transmission in the 980nm wavelength range where conventional telecom fibers are not suitable. With optimized near-infrared transmission performance, stable single-mode propagation, and excellent coupling efficiency, this fiber is ideal for demanding sensing, spectroscopy, laser delivery, and biomedical photonic applications.
Manufactured under strict specialty fiber process control and fully tested for precision optical performance, our HI 980 fiber delivers stable and reliable quality for advanced near-infrared systems.
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