G.654E Ultra-Low-Loss Single-Mode Fiber Supplier
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 kilometers
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of G.654E Ultra-Low-Loss Cut-off Wavelength Shifted Single-Mode Optical Fiber
| Property | Parameter | Description |
|---|---|---|
| Product Name | G.654E Ultra-Low-Loss Cut-off Wavelength Shifted Single-Mode Optical Fiber | Designed for long-haul and submarine transmission with ultra-low attenuation |
| Fiber Category | ITU-T G.654E / IEC 60793-2-55 Type B1.3 | Cut-off wavelength shifted single-mode fiber optimized for C+L band operation |
| Standard Compliance | ITU-T G.654E, IEC 60793-2-55, TIA-492CAAB | Compliant with international telecom and fiber optic standards |
| Core Material | Pure Silica Core (SiO₂) | Ultra-pure silica core minimizes Rayleigh scattering and OH absorption losses |
| Cladding Diameter | 125.0 ± 0.7 µm | Standard cladding diameter ensuring compatibility with standard connectors and splicers |
| Core Diameter | 9.0 – 13.0 µm (MFD @ 1550 nm: 11.5 – 13.0 µm) | Enlarged mode field diameter reduces nonlinear effects in high-power transmission |
| Attenuation Coefficient | ≤ 0.160 dB/km @ 1550 nm; ≤ 0.170 dB/km @ 1625 nm | Ultra-low loss enabling extended repeater spacing in submarine and terrestrial links |
| Cable Cut-off Wavelength | ≤ 1530 nm | Ensures single-mode operation across the full C and L transmission bands |
| Chromatic Dispersion | 17 – 23 ps/(nm·km) @ 1550 nm; ≤ 22 ps/(nm·km) @ 1625 nm | Positive dispersion suitable for dispersion-managed transmission systems |
| Polarization Mode Dispersion (PMD) | ≤ 0.06 ps/√km (link design value) | Low PMD supports high-speed coherent transmission at 100G/400G and beyond |
| Coating Diameter | 235 – 265 µm (standard); 200 µm (reduced coating available) | Dual-layer UV-cured acrylate coating providing mechanical protection and flexibility |
| Proof Test Level | ≥ 0.69 GPa (100 kpsi) | Ensures mechanical reliability and screening of latent defects during manufacturing |
| Operating Temperature | -60°C to +85°C | Suitable for deployment in extreme environmental conditions including submarine cables |
| Application | Long-haul terrestrial, submarine, DWDM, coherent 100G/400G/800G transmission | Ideal for ultra-long-distance backbone networks and high-capacity optical systems |
| Certification | RoHS, REACH, ISO 9001:2015, Telcordia GR-20 | Certified for global deployment and environmental compliance |
| Packaging | Wooden reel; standard lengths 4.0 km, 6.25 km, 8.0 km per reel; custom lengths available | Reels labeled with fiber length, attenuation, and batch traceability information |
| MOQ | 50 km (negotiable for project orders) | Flexible order quantities available for system integrators and network operators |
G.654E Ultra-Low-Loss Single-Mode Fiber Supplier
As a trusted G.654E Ultra-Low-Loss Cut-off Wavelength Shifted Single-Mode Optical Fiber supplier, we deliver precision-engineered fiber solutions designed for the most demanding long-haul and submarine transmission networks. The G.654E fiber standard, defined by the ITU-T, represents the pinnacle of low-attenuation single-mode fiber technology, achieving typical attenuation values as low as 0.155 dB/km at 1550 nm — significantly outperforming conventional G.652D fiber. With a cut-off wavelength shifted design, this fiber enables operation across an expanded wavelength window, making it the preferred choice for ultra-long-distance terrestrial backbone networks, transoceanic cable systems, and next-generation coherent optical transmission platforms where signal integrity over thousands of kilometers is non-negotiable. Our manufacturing capabilities, combined with rigorous quality assurance aligned with IEC 60793-2-50 standards, ensure every reel shipped meets the most stringent international performance benchmarks.
What is G.654E Ultra-Low-Loss Cut-off Wavelength Shifted Single-Mode Optical Fiber?
G.654E Ultra-Low-Loss Cut-off Wavelength Shifted Single-Mode Optical Fiber is a specialized optical transmission medium standardized under ITU-T G.654 Category E. It features a pure silica core with a depressed or matched cladding structure, engineered to deliver an attenuation coefficient of ≤0.17 dB/km at 1550 nm, a mode field diameter of 12.0 µm nominal, and a cable cut-off wavelength of ≤1530 nm. These characteristics make it ideally suited for amplified long-haul and ultra-long-haul DWDM transmission systems.

G.654E Ultra-Low-Loss Cut-off Wavelength Shifted Single-Mode Optical Fiber Manufacturing Process
Production begins with ultra-high-purity synthetic silica preform fabrication using Outside Vapor Deposition (OVD) or Modified Chemical Vapor Deposition (MCVD) processes, achieving hydroxyl (OH⁻) ion concentrations below 0.1 ppb to minimize absorption loss. The preform is then drawn in a precision fiber drawing tower at controlled temperatures exceeding 2000°C, followed by dual-layer UV-cured acrylate coating application to a standard outer diameter of 245 µm ± 10 µm, ensuring mechanical robustness and long-term environmental stability.
G.654E Ultra-Low-Loss Cut-off Wavelength Shifted Single-Mode Optical Fiber Technical Specifications
Key parameters include: attenuation at 1550 nm ≤0.17 dB/km (typical 0.155 dB/km), attenuation at 1625 nm ≤0.19 dB/km, mode field diameter 12.0 ± 0.6 µm at 1550 nm, chromatic dispersion between +18 and +22 ps/(nm·km) at 1550 nm, polarization mode dispersion (PMD) coefficient ≤0.04 ps/√km, cable cut-off wavelength ≤1530 nm, and a cladding diameter of 125.0 ± 0.7 µm. Coating diameter is 245 ± 10 µm, compliant with ITU-T G.654E and IEC 60793-2-50 Type B1.3.
Get a Competitive Quote for G.654E Ultra-Low-Loss Single-Mode Fiber
Partner with a reliable G.654E Ultra-Low-Loss Single-Mode Fiber supplier that offers mill-direct rates, rapid lead times, and full technical documentation including OTDR test reports and compliance certificates. Whether you require standard reel lengths of 25 km or custom configurations, our team is ready to support your project from specification to delivery.
- 24/7 customer support available
- Free samples for quality evaluation
- Competitive pricing for bulk orders
- Professional technical consultation
Contact us today to get your free quote within 24 hours!

