G.657 Optical Fiber - Bend-insensitive Single-mode Optical Fiber (Class A) - Sensing and Communication Fiber Optic

This product is a standard G.657.A2 bend-insensitive Class A optical fiber, suitable for Beijing Dacheng Yongsheng Technology Co., Ltd.'s seamless steel tube armored fiber optic jumpers, stainless seamless steel tube armored fiber optic cables, and distributed fiber optic sensors.

Note: The content of this material is for reference only. Due to differences in selected manufacturers and production batches, there may be slight deviations in specifications.

It can also be used for fabricating fiber optic gratings and manufacturing fiber optic grating sensors. Product brand is OFSCN®.

Note: The content of this material is for reference only. Due to differences in selected manufacturers and production batches, there may be slight deviations in specifications.

Product brands is OFSCN®.

OFSCN® G.657 Optical Fiber Structure:

Fiber optic type: Single-mode Structural dimensions: Core/cladding/coating: 9/125/255μm

Physical picture

 

OFSCN® G.657 Optical Fiber Product Description：

This bend-insensitive Class A optical fiber meets or exceeds the standards of ITU-T G.657's Class A optical fibers. It possesses all the characteristics of low water peak fibers, and its performance also complies with the optical fiber standards of ITU-T G.652D and IEC60793-2-50 B1.3. This type of fiber has good macrobend resistance, and it is a bend-insensitive low water peak optical fiber.

OFSCN® G.657 Optical Fiber parameter table:

Product parameter	Specification
Transmission performance
Attenuation @ 1310nm	≤0.35 dB/km
Attenuation @ 1550nm	≤0.21 dB/km
Attenuation @ 1625nm	≤0.23 dB/km
Attenuation @ 1383±3nm	≤0.35 dB/km
Attenuation Discontinuity	≤0.05 dB
Attenuation Wavelength Characteristics	≤0.03 dB/km
Zero-dispersion wavelength range	1300~1324nm
Zero-dispersion slope	≤0.090 ps/(nm2.km)
1288-1339nm Dispersion coefficient	≤3.5 ps/(nm.km)
1271-1360nm Dispersion coefficient	≤5.3 ps/(nm.km)
1550nm Dispersion coefficient	≤18 ps/(nm.km)
Polarization mode dispersion (PMD)	≤0.1 ps/√km
Cut-off wavelength（λc）	1150~1340 nm
Cut-off wavelength（λcc）	≤1260 nm
Macro-bending loss
R15mm/10 turns/1550nm	≤0.03 dB
R10mm/1 turn/1550nm	≤0.1 dB
R7.5mm/1 turn/1550nm	≤0.5 dB
R15mm/10 turns/1625nm	≤0.1 dB
R10mm/1 turn/1625nm	≤0.2 dB
R7.5mm/1 turn/1625nm	≤1 dB
Geometric parameters
1310nm Mode field diameter (MFD)	（8.6~9.2）±0.4μm
Cladding diameter	125±0.7μm
Core/cladding concentricity error	≤0.5μm
Cladding non-circularity	≤1%
Coating diameter (uncolored)	243±7μm
Cladding/coating concentricity error	≤8μm
Mechanical properties
Screening strain	≥1.0%
Fiber tensile strength	10m length minimum strength Weibull probability level：2.76GPa（15%）
Optical fiber dynamic fatigue parameters	≥20nd
Optical fiber curl radius	≥4 M
Optical fiber coating stripping force	Average value: 1~5N, Peak value: 1~8.9N
Environmental performance
Temperature characteristics	－60~＋85℃
Immersion performance	23±2℃, 30 days
Humidity and heat performance	85±2℃，Relative humidity of 85% or higher, 30 days
Thermal aging performance	85±2℃, 30 days
Wavelength-allowed additional attenuation	≤0.05dB/km@1310nm&1550nm

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Features of OFSCN® G.657 Optical Fiber

• Bend-Insensitive: Minimizes signal loss even under tight bending radii, enabling flexible installation and space-saving designs.
• Low Water Peak: Offers excellent performance across a broad spectrum of wavelengths, including the E-band (1360-1460 nm), due to reduced hydroxyl ion absorption.
• Single-Mode Operation: Ideal for long-distance and high-bandwidth data transmission.
• High Compatibility: Meets or exceeds industry standards including ITU-T G.657.A2, ITU-T G.652D, and IEC60793-2-50 B1.3.
• Versatile Core/Cladding/Coating: Standard 9/125/255 µm dimensions support wide application.
• FBG Compatible: Suitable for manufacturing fiber Bragg gratings (FBGs) and FBG sensors.

Potential Application Scenarios & Industry Examples of OFSCN® G.657 Optical Fiber

This G.657.A2 optical fiber's unique properties make it highly suitable for a diverse range of applications and industries:

Application Scenarios Examples of OFSCN® G.657 Optical Fiber:

• Fiber to the Home/Building (FTTH/FTTB): Its bend-insensitivity is crucial for routing fiber in residential and commercial buildings, where tight turns and small spaces are common.
• Data Centers: For high-density cabling within server racks and short-reach interconnects where space is at a premium.
• Indoor Cabling: Excellent for risers, plenums, and horizontal runs where fiber needs to navigate complex building architectures.
• Patch Cords and Jumpers: Ensures robust connections in various networking environments, including demanding turns.
• Optical Access Networks (OANs): Especially in last-mile deployments where flexibility and reduced installation time are beneficial.
• Fiber Bragg Grating (FBG) Sensors: Its compatibility with FBG manufacturing opens up applications in sensing for various parameters.
• Structural Health Monitoring: Using FBG sensors made from this fiber to monitor strain, temperature, and vibration in bridges, buildings, and other infrastructure.
• Industrial Sensing: For real-time monitoring of machinery, pipelines, and processes in harsh environments.
• Geophysical Sensing: Applications in oil and gas exploration, seismic monitoring, and environmental sensing.
• Medical Devices: Potentially for endoscopic imaging or sensing within medical instruments where small diameters and flexibility are key.

Industry Examples of OFSCN® G.657 Optical Fiber:

• Telecommunications: Primarily for last-mile access networks, in-building installations, and data center connectivity.
• Construction & Real Estate: For wiring new and existing buildings with advanced fiber optic infrastructure.
• Data Center & Cloud Services: To build out efficient and high-performing internal networks.
• Industrial Automation: For sensing and control applications within manufacturing plants and industrial facilities.
• Oil & Gas: For downhole sensing, pipeline monitoring, and structural integrity assessment.
• Civil Engineering: In structural health monitoring of bridges, tunnels, dams, and other large structures.
• Aerospace & Defense: For lightweight, high-performance sensing systems in aircraft, spacecraft, and military equipment.
• Medical & Healthcare: For diagnostic and therapeutic devices requiring precision optical sensing.
• Research & Development: As a fundamental component in optical communication and sensing research.