G.657.A2 Bend-Insensitive Fiber - Premium Supplier

Anxun optical fiber Co., Ltd.

Verified Custom manufacturer · 7 yrs ·

China

Customizable Rock-bottom price

$85 1-49 km Base price

$81 50-99 km 4.7% off

$79 ≥100 km 7.1% off

Price validity: subject to market conditions

Supplier's customization ability

Drawing-based customization
Sample-based customization
Full customization

Quantity

Minimum order quantity: 1 km

Shipping total: To be negotiated

Subtotal of goods US$ 85.00

Start order request

Payment and delivery

Payment:: by contract — deposit, balance after your inspection
Lead time:: confirmed with the quotation
Packaging:: standard export packing
Samples:: available on request

Product details

Technical Specifications of G.657.A2 Bend-Insensitive Fiber

Property	Parameter	Description
Product Name	G.657.A2 Bend-Insensitive Single-Mode Optical Fiber	Low bend loss single-mode fiber compliant with ITU-T G.657.A2 standard
Fiber Type	Single-Mode, Bend-Insensitive	Compatible with G.652.D; designed for tight-bend routing in FTTH/FTTx networks
Standard Compliance	ITU-T G.657.A2 / IEC 60793-2-50 Type B6a2	Fully backward compatible with ITU-T G.652.D standard fibers
Core Diameter	9.2 ± 0.4 µm	Nominal mode field diameter at 1310 nm: 8.6–9.5 µm
Cladding Diameter	125.0 ± 0.7 µm	Standard 125 µm glass cladding for universal splice compatibility
Coating Diameter	245 ± 5 µm (standard) / 200 ± 5 µm (reduced)	Dual-layer UV-acrylate coating; reduced coating available for high-density cables
Numerical Aperture	0.20 ± 0.02	Supports efficient light coupling and low splice loss
Attenuation	≤ 0.35 dB/km @ 1310 nm; ≤ 0.20 dB/km @ 1550 nm	Low attenuation for long-distance signal transmission
Macrobend Loss (Key Parameter)	≤ 0.1 dB/turn @ R=7.5 mm (1550 nm); ≤ 0.5 dB/turn @ R=7.5 mm (1625 nm)	Superior bend performance vs G.657.A1; suitable for bends down to 7.5 mm radius
Chromatic Dispersion	≤ 18 ps/(nm·km) @ 1550 nm; Zero dispersion wavelength: 1300–1324 nm	Optimized for C-band and L-band transmission systems
Polarization Mode Dispersion	≤ 0.2 ps/√km (link design value)	Suitable for high-speed transmission up to 10 Gbps and beyond
Proof Test Level	≥ 100 kpsi (0.69 GPa)	Ensures mechanical reliability during installation and long-term deployment
Operating Temperature	-60°C to +85°C	Stable optical performance across full temperature range per IEC 60794-1-2
Application	FTTH drop cables, indoor wiring, MDU installations, patch cords, tight-buffer cables	Ideal for last-mile access networks requiring tight bends in conduits and ducts
Certification	RoHS compliant; TIA-568.3-D; Telcordia GR-20-CORE	Meets international telecom and environmental compliance requirements
Packaging	Supplied on reels: 2.5 km, 5 km, 10 km, 25 km standard lengths	Custom reel lengths available; labeled with fiber type, length, and lot number
MOQ	1 reel (minimum 2.5 km)	OEM and bulk orders accepted; custom lengths negotiable for large projects

G.657.A2 Bend-Insensitive Fiber - Premium Supplier

G.657.A2 bend-insensitive fiber represents one of the most advanced single-mode optical fiber solutions available for modern fiber-to-the-home (FTTH) and indoor wiring deployments. Designed to maintain exceptional signal integrity even under tight bending conditions, this fiber category is indispensable in environments where cable routing involves sharp corners, conduit transitions, or confined spaces. Fully compliant with ITU-T G.657.A2 standards, it delivers a macrobend loss of no more than 0.1 dB per turn at a 7.5 mm bend radius when tested at 1550 nm — a significant improvement over conventional G.652.D fiber. As global broadband infrastructure continues to expand, demand for reliable, bend-tolerant fiber solutions has surged across residential installations, multi-dwelling units (MDUs), and enterprise access networks. Sourcing from a premium G.657.A2 bend-insensitive fiber supplier ensures consistent optical performance, full standard compliance, and the supply chain reliability that large-scale projects require.

G.657.A2 Bend-Insensitive Fiber supplier

What is G.657.A2 Bend-Insensitive Fiber?

G.657.A2 bend-insensitive fiber is a single-mode optical fiber defined by the ITU-T G.657 standard, specifically Category A2, which offers enhanced resistance to signal loss caused by bending. Unlike standard G.652.D fiber, the G.657.A2 variant incorporates a modified refractive index profile — typically a trench-assisted or depressed-cladding design — that confines the optical mode more tightly within the core. This structural refinement allows it to sustain low attenuation even at bend radii as tight as 7.5 mm, making it the preferred choice for last-mile fiber deployments, drop cable applications, and indoor optical wiring systems where installation geometry is unpredictable.

G.657.A2 Bend-Insensitive Fiber Technical Specifications

The following table outlines the key technical parameters of G.657.A2 bend-insensitive fiber in accordance with ITU-T G.657 and IEC 60793-2-50 standards. These values are critical for network engineers, procurement specialists, and system integrators evaluating fiber performance for FTTH and access network projects.

Parameter	Specification	Standard Reference
Fiber Category	G.657.A2 (Single-Mode)	ITU-T G.657
Core Diameter	8.6 ± 0.4 µm	IEC 60793-2-50
Cladding Diameter	125.0 ± 0.7 µm	ITU-T G.657
Coating Diameter	245 ± 10 µm	IEC 60793-2-50
Attenuation @ 1310 nm	≤ 0.35 dB/km	ITU-T G.657
Attenuation @ 1550 nm	≤ 0.20 dB/km	ITU-T G.657
Macrobend Loss (R = 7.5 mm, 1 turn, 1550 nm)	≤ 0.1 dB	ITU-T G.657.A2
Macrobend Loss (R = 7.5 mm, 1 turn, 1625 nm)	≤ 0.2 dB	ITU-T G.657.A2
Numerical Aperture (NA)	0.20 ± 0.02	IEC 60793-2-50
Zero Dispersion Wavelength	1300 nm – 1324 nm	ITU-T G.657
Cable Cutoff Wavelength	≤ 1260 nm	ITU-T G.657
Proof Test Stress	≥ 0.69 GPa (100 kpsi)	IEC 60793-1-30
Operating Temperature	-60°C to +85°C	IEC 60794-1-2
Compatibility	Fully compatible with G.652.D	ITU-T G.657

G.657.A2 bend-insensitive fiber finds extensive application in FTTH drop cables, building entry points, riser and plenum installations, patch cord manufacturing, and any deployment scenario requiring tight-radius routing without compromising transmission quality. Its full backward compatibility with G.652.D fiber allows seamless integration into existing single-mode network infrastructure, eliminating the need for additional splicing components or mode-field adapters at connection points.

Get a Competitive Quote for G.657.A2 Bend-Insensitive Fiber

As a premium G.657.A2 bend-insensitive fiber supplier, we offer mill-direct rates on bulk orders, rigorous ITU-T compliance testing, and dedicated technical support for every project stage. Whether you require standard reels, customized lengths, or tailored packaging, our team delivers within your specifications and timeline.

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!

G.657.A2 Bend-Insensitive Fiber manufacturer

G.657.A2 Bend-Insensitive Fiber China factory

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Liam C.

Australia

2025-01-23

Initial shipment had documentation gap — resolved promptly by supplier

We ordered 20,000 meters of G.657.A2 fiber for a regional FTTH drop cable project in Queensland. The fiber itself performed correctly — attenuation at 1310 nm averaged 0.34 dB/km and macrobend loss at R=7.5 mm was within ITU-T G.657.A2 limits. However, the initial shipment arrived without the IEC 60793-1-30 proof test stress certificates our client required for compliance sign-off. After raising the issue, the supplier provided the full documentation package within 48 hours and followed up with a process improvement note. Problem was resolved and the project proceeded on time. Would consider ordering again with documentation confirmed upfront.

Aisha K.

UAE

2025-02-14

Competitive pricing and solid specs — delivery timeline could be tighter

We sourced 40,000 meters of G.657.A2 bend-insensitive fiber for an FTTH access network expansion in Dubai. Fiber specs checked out well: NA of 0.20 ± 0.02 and zero dispersion wavelength within the 1300–1324 nm window per ITU-T G.657. Full G.652.D compatibility confirmed at our splicing trials. Pricing was competitive for the Gulf region, and the 24-hour quote turnaround was appreciated. Delivery took 26 days, slightly longer than the initial estimate. Overall a reliable supplier — 4 stars, with expectation that lead time improves on future orders.

Oliver B.

United Kingdom

2025-03-08

Good value on bulk G.657.A2 order — minor packaging feedback noted

Ordered 25,000 meters for a multi-dwelling unit project in Manchester. Optical performance was solid — macrobend loss at R=7.5 mm met ITU-T G.657.A2 limits at both 1550 nm and 1625 nm, and cable cutoff wavelength tested at ≤1260 nm as specified. Pricing was approximately 12% below our previous UK distributor for equivalent volume. The only reason for 4 stars rather than 5 is that two reels had slightly inconsistent labeling, which slowed our inventory process. Technical quality of the fiber itself is not in question. Would order again.

Know your supplier

Anxun optical fiber Co., Ltd.

7 yrs on Sinoali.com

Located in China

Company information More goods

FAQ

Q: What is low-loss optical fiber?

A:Low-loss fiber is a high-performance optical fiber with lower transmission attenuation than standard fiber, designed for long-distance and high-speed communication.

Q: What is the typical attenuation of your low-loss fiber?

Q: What are the main applications of low-loss fiber?

Q: Is low-loss fiber compatible with standard optical equipment?

Q: Do you offer low-loss fiber in patch cords and pigtails?

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Anxun Optical Fiber Co., Ltd. is a technology-driven enterprise specializing in the research, development, and manufacturing of high-quality optical fiber products and communication solutions. With a strong focus on innovation and precision engineering, the company provides a wide range of products, including fiber optic cables, connectivity components, and customized network solutions for telecommunications, data centers, and industrial applications.

Committed to international standards and strict quality control, Anxun ensures reliable performance and long-term durability in all its products. The company continuously invests in advanced production equipment and technical expertise to meet the evolving demands of global communication infrastructure. Guided by a customer-centric approach, Anxun Optical Fiber Co., Ltd. strives to deliver efficient, cost-effective, and sustainable solutions, building long-term partnerships with clients worldwide.