Optical Fiber

G.657.A1 – 200 µm

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G.657.A1 – 200 µm
Optical Fiber

G.657.A1 – 200 µm

Reduced-diameter, bend-insensitive single-mode fiber | 200 µm coating | Bend radius down to 10 mm | ITU-T G.652.D / G.657.A1

The G.657.A1 200 µm Optical Fiber delivers the complete transmission characteristics of non-dispersion shifted single-mode fiber in a reduced 200 µm coating diameter. It supports full-band transmission from 1260 nm to 1625 nm with the 1383 nm water peak eliminated, and maintains low loss at bend radii as small as 10 mm in the long-wavelength band. Fully compatible with existing G.652.D fiber, its precise geometry ensures low splice loss and high splicing efficiency. The reduced coating enables smaller, lighter, higher fiber-count cables — ideal for micro-duct and space-constrained network builds.

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Specifications

Fiber Type Reduced-diameter, bend-insensitive single-mode fiber
Standard ITU-T G.652.D / G.657.A1 | IEC 60793-2-50 B1.3 / B6.a1
Coating Diameter 200 µm
Operating Wavelength 1260 nm to 1625 nm

Key Features

  • Reduced 200 µm coating diameter
  • Bend-insensitive single-mode fiber configuration
  • Bend radius as small as 10 mm in the long-wavelength band
  • Full-band transmission from 1260 nm to 1625 nm — 1383 nm water peak eliminated
  • Fully compatible with existing G.652.D fiber
  • Accurate geometrical parameters for low splice loss and high splicing efficiency
  • Excellent PMD performance for high-speed, long repeater spacing systems
Use Cases

Applications & Deployments

High fiber-count and small-diameter optical cables
Micro-duct and air-blown cable systems
Ribbon and rollable ribbon cables
FTTH and access network deployments
Data center and high-density interconnect cabling
Defence communication networks and secure military links
Fiber-optic controlled drones with jam-resistant command and video links
Tethered drone systems for persistent surveillance and reconnaissance
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