G.652D / G.657A2 Bare Optical Fiber Spool (Single-Mode) – 25.2 km / 50.4 km Raw Material

AIMIFIBER supplies carrier-grade bare optical fiber for cable manufacturing, sensing, and laboratory use. Choose G.652D for metropolitan/access networks with low-water-peak performance (1260–1625 nm), or G.657A2 for tight-routing FTTH with minimal macrobend loss (down to 7.5 mm radius). Each spool is proof-tested ≥100 kpsi, features dual-layer UV acrylate coating (~245 µm), and delivers ≤0.34 dB/km @1310 nm / ≤0.20 dB/km @1550 nm typical attenuation. Standard 25.2 km and 50.4 km put-ups with factory test report and OEM/private-label options.

Description

The Core of Connectivity: Carrier-Grade Bare Fiber

At AIMIFIBER, we build from the photon up. Our Single-Mode Bare Optical Fiber is drawn and coated for consistent geometry and low loss, ensuring splice compatibility and stable network performance in production and R&D environments.

Product Options

  • G.652D (Standard SMF): Low-water-peak performance for full spectrum operation (1260–1625 nm). Interoperable with mainstream G.652D fibers used in metro/access networks.
  • G.657A2 (Bend-Insensitive): Engineered for tight bends (down to 7.5 mm radius) with minimal macrobend loss. Ideal for FTTH drop, indoor routing, and invisible fibers.

Key Features

  • Superior geometry: 125.0 ± 0.7 µm cladding; ≤0.5 µm core–clad concentricity for reliable fusion splicing.
  • Dual-layer UV acrylate coating (~245 µm): Excellent micro-bend resistance and environmental protection.
  • Low attenuation: ≤0.34 dB/km @1310 nm; ≤0.20 dB/km @1550 nm (typ.).
  • Standard spooling: 25.2 km / 50.4 km with traceable labels & factory test report.
  • OEM options: IEC 60304 color inks, custom proof test, private label, RoHS/REACH documentation.
Global fiber optic price trends for FTTH and backbone projects in 2025–2026

Technical Specifications

ParameterSpecification (G.652D / G.657A2)
Cladding Diameter125.0 ± 0.7 µm
Coating Diameter≈245 ± 5 µm (Natural / optional color inks)
Core–Clad Concentricity≤ 0.5 µm
Cladding Non-Circularity≤ 0.7 %
Attenuation (typ.)1310 nm: ≤ 0.34 dB/km; 1550 nm: ≤ 0.20 dB/km
Proof Test Level≥ 100 kpsi (0.69 GPa); higher on request
Bend PerformanceG.657A2 meets 7.5 mm min. bend radius requirements
Operating / Storage Temp.−60 °C to +85 °C / −40 °C to +85 °C
Spool Length25.2 km / 50.4 km (customizable)
StandardsITU-T G.652.D, ITU-T G.657.A2; IEC 60793-2-50

Applications

  • Optical cable manufacturing (FTTH drop, indoor/outdoor cables)
  • Fiber sensing & FBG projects
  • Pigtail/patch cord production lines
  • Lab qualification, OTDR/attenuation test rigs

Compliance & QA

  • 100% geometry and attenuation testing; proof-test verified
  • RoHS / REACH compliant materials
  • Lot traceability and factory test report included

Packaging & Labeling

  • Standard shipping spools (25.2 km / 50.4 km), vacuum-bag protected with desiccant
  • External label: fiber type, length, lot ID, proof level, date code, QR trace

Ordering Information

Code format: BF-[G652D|G657A2]-[25.2|50.4]KM-[100K|CUSTOM]-[NAT|COLOR]-[LOT]
Example: BF-G657A2-25.2KM-100K-NAT-24AIMI1234

FAQs

  1. What are standard put-ups?
    25.2 km and 50.4 km per spool; other lengths on request.
  2. Can you supply colored fiber?
    Yes—IEC 60304 12-color inks or custom colors.
  3. What proof levels are available?
    ≥100 kpsi standard; higher levels available for special builds.
  4. Is it compatible with mainstream G.652D fibers?
    Yes—drawn to meet G.652.D/IEC 60793-2-50 parameters for splice interoperability.
  5. Lead time?
    Stock for common SKUs; custom builds typically 2–4 weeks.

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