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G.654D Single-Mode Optical Fiber - Premium Supplier
China
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 km
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.654D Large Mode Field Diameter Cutoff-Wavelength-Shifted Single-Mode Optical Fiber
| Property | Parameter | Description |
|---|---|---|
| Product Name | G.654D Large Mode Field Diameter Cutoff-Wavelength-Shifted Single-Mode Optical Fiber | Ultra-low loss, large effective area single-mode fiber optimized for long-haul and submarine transmission |
| Fiber Category | ITU-T G.654.D | Cutoff-wavelength-shifted single-mode optical fiber; equivalent to IEC 60793-2-55 Type B1.3 |
| Standard Compliance | ITU-T G.654.D / IEC 60793-2-55 / TIA-492CAAB | Compliant with international optical fiber standards for submarine and terrestrial long-haul networks |
| Core Material | Pure Silica Core (PSC) | High-purity silica glass core with fluorine-doped silica cladding for ultra-low attenuation |
| Mode Field Diameter (MFD) | 12.0 µm ± 0.6 µm @ 1550 nm | Large MFD reduces nonlinear effects; per ITU-T G.654.D specification |
| Cladding Diameter | 125.0 µm ± 0.7 µm | Standard 125 µm cladding for compatibility with standard connectors and splicing equipment |
| Coating Diameter | 245 µm ± 5 µm (dual-layer acrylate) | Dual-layer UV-cured acrylate coating for mechanical protection and ease of stripping |
| Cutoff Wavelength (λcc) | ≤ 1530 nm (cable cutoff) | Ensures single-mode operation throughout the C+L band; shifted below 1530 nm per G.654.D |
| Attenuation Coefficient | ≤ 0.170 dB/km @ 1550 nm; ≤ 0.190 dB/km @ 1310 nm | Ultra-low attenuation enabling extended repeater spacing in submarine and terrestrial systems |
| Chromatic Dispersion | 17 to 22 ps/(nm·km) @ 1550 nm | Positive dispersion in C-band; zero dispersion wavelength (λ0) in range 1300–1324 nm |
| Polarization Mode Dispersion (PMD) | ≤ 0.04 ps/√km (link design value) | Extremely low PMD for high-speed coherent transmission at 100G/400G and beyond |
| Effective Area (Aeff) | ≥ 110 µm² @ 1550 nm | Large effective area minimizes nonlinear impairments (SBS, SPM, XPM) in high-power DWDM systems |
| Operating Temperature | -60°C to +85°C | Suitable for harsh environments including submarine, aerial, and direct-buried installations |
| Application | Submarine cables, long-haul terrestrial DWDM, transoceanic networks, 100G/400G/800G coherent systems | Ideal for amplified systems with EDFA/Raman amplification requiring low loss and low nonlinearity |
| Certification | RoHS, REACH, UL, TÜV, ISO 9001:2015 | Environmentally compliant; manufactured under certified quality management systems |
| Packaging | Wooden reel or plastic bobbin; standard lengths 4.0 km, 6.25 km, 8.0 km per reel | Custom reel lengths available; moisture-proof packaging for long-distance shipping |
| MOQ | 50 km (≈ 8 reels) | Minimum order quantity for standard production runs; OEM and custom specifications negotiable |
G.654D Single-Mode Optical Fiber - Premium Supplier
G.654D Large Mode Field Diameter Cutoff-Wavelength-Shifted Single-Mode Optical Fiber represents the pinnacle of ultra-low-loss transmission technology, engineered specifically for long-haul and submarine optical communication networks. Conforming to ITU-T G.654D standards, this fiber delivers an attenuation coefficient as low as 0.157 dB/km at 1550 nm, enabling signal transmission over transoceanic distances with minimal regeneration requirements. The enlarged effective area—typically ranging from 125 μm² to 150 μm²—significantly reduces nonlinear optical effects such as stimulated Raman scattering and four-wave mixing, making it the preferred choice for high-capacity coherent transmission systems operating at 100G, 400G, and beyond. Its cutoff wavelength is precisely shifted to below 1530 nm, ensuring single-mode operation across the full C- and L-band spectrum. Whether deployed in terrestrial backbone infrastructure, intercontinental submarine cables, or advanced DWDM networks, G.654D fiber consistently delivers superior performance, reliability, and spectral efficiency that modern high-speed communication demands.
What is G.654D Large Mode Field Diameter Cutoff-Wavelength-Shifted Single-Mode Optical Fiber?
G.654D Large Mode Field Diameter Cutoff-Wavelength-Shifted Single-Mode Optical Fiber is a specialized optical transmission medium standardized by the ITU-T G.654 series. It is characterized by a pure silica core, an enlarged mode field diameter of approximately 12 μm, and a cutoff wavelength shifted below 1530 nm. These attributes collectively minimize attenuation and nonlinear impairments, making it indispensable for ultra-long-haul, high-capacity photonic networks.
G.654D Large Mode Field Diameter Cutoff-Wavelength-Shifted Single-Mode Optical Fiber Manufacturing Process
Production of G.654D fiber begins with high-purity synthetic silica preform fabrication using Outside Vapor Deposition (OVD) or Modified Chemical Vapor Deposition (MCVD) techniques. The preform is precision-drawn at temperatures exceeding 2,000 °C in a controlled drawing tower, achieving a cladding diameter of 125 ± 0.7 μm. UV-curable dual-layer acrylate coatings are applied inline to reach a final outer diameter of 245 μm, ensuring mechanical durability and environmental resistance throughout the fiber's operational lifespan.
G.654D Large Mode Field Diameter Cutoff-Wavelength-Shifted Single-Mode Optical Fiber Technical Specifications
Key parameters of G.654D fiber include: attenuation ≤ 0.157 dB/km at 1550 nm; mode field diameter of 11.5–13.0 μm at 1550 nm; effective area ≥ 125 μm²; cable cutoff wavelength ≤ 1530 nm; chromatic dispersion of 17–22 ps/(nm·km) at 1550 nm; polarization mode dispersion ≤ 0.1 ps/√km; and a proof test tensile strength of ≥ 0.69 GPa. These specifications fully comply with ITU-T G.654D and IEC 60793-2-54 Type B4 standards.
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