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G657A 9/125 Bare Fiber | Bend Insensitive Single Mode Bare Optical Fiber
HUALUE G657A 9/125 bend insensitive single mode bare fiber is designed for FTTH, indoor cabling, and high-density optical routing applications. Low bending loss, stable attenuation, and compliant with ITU-T G.657.A standards.
| Parameter | Specification | Parameter | Specification |
| Fiber Type | Bend Insensitive Single Mode Bare Optical Fiber | Attenuation @1310nm | ≤ 0.35 dB/km |
| Fiber Standard | ITU-T G.657.A | Attenuation @1383nm | ≤ 0.32 dB/km |
| Core Diameter | 9 ± 0.4 μm | Attenuation @1550nm | ≤ 0.21 dB/km |
| Cladding Diameter | 125 ± 0.7 μm | Attenuation @1625nm | ≤ 0.23 dB/km |
| Coating Type | Bare Fiber (Uncolored / Primary Coated Optional) | Macrobending Loss @1550nm (10 turns, 15mm radius) | ≤ 0.25 dB |
| Mode Field Diameter @1310nm | 8.6–9.5 μm | PMD | ≤ 0.2 ps/√km |
| Mode Field Diameter @1550nm | 9.8–10.8 μm | Proof Test Level | ≥ 100 kpsi |
| Cutoff Wavelength (λcc) | ≤ 1260 nm | Operating Temperature | -60°C to +85°C |
| / | / | Storage Temperature | -60°C to +85°C |
- Parameters
| Parameter | Specification | Parameter | Specification |
| Fiber Type | Bend Insensitive Single Mode Bare Optical Fiber | Attenuation @1310nm | ≤ 0.35 dB/km |
| Fiber Standard | ITU-T G.657.A | Attenuation @1383nm | ≤ 0.32 dB/km |
| Core Diameter | 9 ± 0.4 μm | Attenuation @1550nm | ≤ 0.21 dB/km |
| Cladding Diameter | 125 ± 0.7 μm | Attenuation @1625nm | ≤ 0.23 dB/km |
| Coating Type | Bare Fiber (Uncolored / Primary Coated Optional) | Macrobending Loss @1550nm (10 turns, 15mm radius) | ≤ 0.25 dB |
| Mode Field Diameter @1310nm | 8.6–9.5 μm | PMD | ≤ 0.2 ps/√km |
| Mode Field Diameter @1550nm | 9.8–10.8 μm | Proof Test Level | ≥ 100 kpsi |
| Cutoff Wavelength (λcc) | ≤ 1260 nm | Operating Temperature | -60°C to +85°C |
| / | / | Storage Temperature | -60°C to +85°C |
G657A 9/125 Bare Fiber
HUALUE G657A1 9/125 bend insensitive single mode bare fiber is optimized for modern FTTH and high-density optical communication networks. The fiber provides excellent macrobending performance while maintaining low attenuation and stable transmission characteristics.
Designed for indoor routing, access networks, fiber patch cords, and compact cable structures, the fiber supports reliable signal transmission in limited installation spaces where tight bending conditions are required.
Product Features
•Low macrobending loss
- •Compatible with G652D fiber systems
- •Optimized for FTTH applications
- •Stable attenuation performance
- •Suitable for high-density cable routing
- •Excellent splice compatibility
- •Reliable long-term transmission stability
- •Supports compact cable structures
Product Applications
G657A 9/125 bare fiber is specifically designed for bend-sensitive optical installations and high-density fiber management systems.
FTTH & FTTx Access Networks Ideal for: •Indoor drop cables •Access networks •ONU connections •Fiber wall outlets •Distribution terminals
| Patch Cord & Pigtail Manufacturing Widely used for: •Patch cords •Pigtails •Jumpers •Connectorized assemblies
| Indoor Optical Cabling Suitable for: •Building backbone routing •Data rooms •Fiber wall boxes •Indoor cable assemblies
| Optical Passive Components Used in: •PLC splitters •Optical couplers •WDM modules •Compact passive optical devices
| High-Density Fiber Management Ideal for: •ODF systems •Fiber patch panels •Distribution frames •Compact optical enclosures
|
Product Specifications
| Parameter | Specification | Parameter | Specification |
| Fiber Type | Bend Insensitive Single Mode Bare Optical Fiber | Attenuation @1310nm | ≤ 0.35 dB/km |
| Fiber Standard | ITU-T G.657.A | Attenuation @1383nm | ≤ 0.32 dB/km |
| Core Diameter | 9 ± 0.4 μm | Attenuation @1550nm | ≤ 0.21 dB/km |
| Cladding Diameter | 125 ± 0.7 μm | Attenuation @1625nm | ≤ 0.23 dB/km |
| Coating Type | Bare Fiber (Uncolored / Primary Coated Optional) | Macrobending Loss @1550nm (10 turns, 15mm radius) | ≤ 0.25 dB |
| Mode Field Diameter @1310nm | 8.6–9.5 μm | PMD | ≤ 0.2 ps/√km |
| Mode Field Diameter @1550nm | 9.8–10.8 μm | Proof Test Level | ≥ 100 kpsi |
| Cutoff Wavelength (λcc) | ≤ 1260 nm | Operating Temperature | -60°C to +85°C |
| / | / | Storage Temperature | -60°C to +85°C |
Geometrical & Optical Characteristics
| Geometrical Characteristics | Optical Characteristics | |||
| Parameter | Typical Value | Parameter | Typical Value | |
| Core Diameter | 9 ± 0.4 μm | Operating Wavelength | 1260–1625 nm | |
| Cladding Diameter | 125 ± 0.7 μm | Mode Field Diameter @1310nm | 8.6–9.5 μm | |
| Core-Cladding Concentricity Error | ≤ 0.5 μm | Mode Field Diameter @1550nm | 9.8–10.8 μm | |
| Cladding Non-Circularity | ≤ 1.0% | Cutoff Wavelength | ≤ 1260 nm | |
| Coating Diameter | 245 ± 10 μm (if coated) | Attenuation @1310nm | ≤ 0.35 dB/km | |
| Coating Non-Circularity | ≤ 6.0% | Attenuation @1383nm | ≤ 0.32 dB/km | |
| / | / | Attenuation @1550nm | ≤ 0.21 dB/km | |
| / | / | Attenuation @1625nm | ≤ 0.23 dB/km | |
| / | / | PMD | ≤ 0.2 ps/√km | |
Technical Data
| Optical Transmission Data | Macrobending Performance | Mechanical Performance | Environmental Performance | |||||||
| Wavelength | Attenuation | Test Condition | Typical Loss | Parameter | Value | Test Item | Performance | |||
| Attenuation | ≤ 0.35 dB/km | 1550nm, 10 turns, 15mm radius | ≤ 0.25 dB | Proof Strength | 100 kpsi min | Operating Temperature | -60°C to +85°C | |||
| 1383 nm | ≤ 0.32 dB/km | 1625nm, 10 turns, 15mm radius | ≤ 1.0 dB | Tensile Strength | ≥ 0.7 GPa | Storage Temperature | -60°C to +85°C | |||
| 1490 nm | ≤ 0.24 dB/km | / | / | Dynamic Bend Radius | ≥ 15 mm | Thermal Cycling Stability | Excellent | |||
| 1550 nm | ≤ 0.21 dB/km | / | / | Static Bend Radius | ≥ 10 mm | Humidity Resistance | Excellent | |||
| 1625 nm | ≤ 0.23 dB/km | / | / | / | / | Long-Term Reliability | High | |||
Product Advantages
- •Bend insensitive single mode bare fiber
- •Fully compatible with G652D systems
- •Low bending loss in tight routing environments
- •Excellent for FTTH and indoor fiber management
- •Stable low attenuation across full spectrum
- •Ideal for patch cords, pigtails, and compact passive devices
- •Reliable and flexible for modern access networks
Product Standards
G657A 9/125 bare fiber is manufactured and tested according to international bend insensitive single mode optical fiber standards to ensure high reliability, low bending loss, and excellent compatibility with modern optical access networks.
- •ITU-T G.657.A1
- •IEC 60793
- •IEC 60794
- •RoHS
- •REACH
Why Choose Our G657A 9/125 Bare Fiber?
HUALUE is proud to offer premium bare optical fiber backed by advanced international technology. Through deep technical cooperation with FUTONG and the introduction of Sumitomo’s cutting-edge bare fiber manufacturing technology, HUALUE delivers bare fibers with excellent optical performance, high mechanical strength, and superior consistency.
Our state-of-the-art production line ensures a stable monthly output of 50,000 to 60,000 fiber cores. We maintain substantial ready stock of standard specifications (including G.652.D and G.657 series), enabling immediate delivery to meet urgent customer demands.
HUALUE focuses on optical communication solutions for global telecom and FTTH markets. Our products are supplied for telecom infrastructure, data center deployment, and fiber access projects.
We support:
- •Stable production capability
- •Strict quality inspection
- •Fast international delivery
- •OEM/ODM support
- •Customized cable solutions
- •Technical support for telecom projects
HUALUE is continuously expanding localized support capabilities for international customers and telecom operators.
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