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Monomode fibra óptica fiber optical fiber single mode G.652.D G.657.A1 fibre

  • OPTICAL FIBER


Product Director : James Xu 


Email:  james@zion-communication.com

optical fibers 1

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We mainly outlet THE G.652.D G.657.A1 Fibers

G.652D (B1.3): 

Supports 10Gbit/s system transmission distance up to 3000km, 

40Gbit/s system transmission distance is 80km

G.652A: 

Supports 10Gbit/s system transmission distance up to 400km, 

40Gbit/s system distance is 2km, 10Gbit/s Ethernet transmission is up to 40km,


Optical fiber Classification:

Classification of ITU-T (International Telecommunication Union):

G.651 (OM2=A1a) fiber (50/125μm multimode gradient index fiber)

Mainly used in LAN, 300-500 meters range. G.651 Long-wavelength multimode fiber (ITU-T G.651) 50/125 μm. 

G.652 Non-dispersion-shifted fiber @1310nm Best-performing single-mode fiber with mode field diameter of 8.6~9.5μm SM

G.652B (B1.1): Supports 10Gbit/s system transmission distance up to 3000km, 40Gbit/s system transmission distance is 80km

G.652D (B1.3): Supports 10Gbit/s system transmission distance up to 3000km, 40Gbit/s system transmission distance is 80km

The attenuation coefficient is the same as that of G.652C, that is, the system can work in the 1360~1530nm band.

The zero-dispersion wavelength is at 1310 nm, and the attenuation is minimal at a wavelength of 1550 nm, but has a large positive dispersion of about 18 ps (nm/km).

G.652.D is the most rigorous and fully backward compatible of all G.652 levels, and is structurally indistinguishable from ordinary G.652 fiber.

The reason for this difference is in manufacturing technology.

G.652A: Supports 10Gbit/s system transmission distance up to 400km, 40Gbit/s system distance is 2km, 10Gbit/s Ethernet transmission is up to 40km,

G.652C: Supports 10Gbit/s system transmission distance up to 400km, 40Gbit/s system distance is 2km,

However, the attenuation coefficient is lower at 1550nm, eliminating the water absorption peak near 1380nm, working in the 1360~1530nm band.

G.652 The earliest practical single-mode fiber, 95% of the existing routing is such fiber, so it is called a conventional single-mode fiber.

The lowest price and the most mature technology, the main disadvantage is that the dispersion coefficient is large in the 1550 band, which is not suitable for long-distance applications above 2.5Gb/s.

G652 single-mode fiber is the largest fiber in the world (about 70% of the fiber) and is called "conventional single-mode fiber."

It has two windows of 1550 nm and 1310 nm at the same time. The zero dispersion point is near the 1310 nm window and the minimum attenuation is at the 1550 nm window.

Its characteristics are zero when the wavelength is around 1310 nm when designing and manufacturing, and the loss is the smallest at 1550 nm, but the dispersion is the largest.

The typical loss of the G652 single-mode fiber in the above two windows is:

The attenuation of the 1310 nm window is 0.3 to 0.4 dB/km, and the dispersion coefficient is 0 to 3.5 ps/nm.km.

The attenuation of the 1550 nm window is 0.19 to 0.25 dB/km, and the dispersion coefficient is 15 to 18 ps/nm.km.

In addition to the 1310nm and 1550nm wavelength regions, the G652C single-mode fiber extends the wavelength range to 1360nm to 1530nm.

Main use: G652 single-mode fiber has the advantages of low internal loss, large bandwidth, easy upgrade and expansion, and low cost.

G652 single-mode fiber can be widely used in high-speed, long-distance transmission, such as long-distance communication, trunk, cable TV and loop feeders.

G652 single-mode fiber is suitable for all kinds of fiber optic cable structures, including fiber optic ribbon cable, loose-layer stranded cable, skeleton cable, center bundle tube cable and tight cable. 

G.657 Bend insensitive fiber: The latest fiber variant developed on G.652 fiber, with a mode field (8.6-9.5) ± 0.4, fully compatible with G.652,

It has excellent bending resistance and its bending radius is 1/4 to 1/2 of G.652 fiber.

Mainly used for FTTH fiber to the home, and small bend radius conditions. Mainly do some air blowing micro-cable; FTTH such as leather cable, DAC cable.

G.657A: Transmits 1260, 1310, 1380, 1550, and 1625 nm wavelengths (O, E, S, C, L) and is fully compatible with G.652D.

A1 bending radius 10mm

A2 bending radius 7.5mm


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Online Service:


James Xu (Product Director)

Wechat: xyy71630

Email:james@zion-communication.com


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