Bend Insensitive G.657.A2 Optical Fiber
Products Description
Bend Insensitive Single-mode Optical Fiber （G.657.A2）
Model：G.657.A2
• Standard：Complies with or exceed the technical specifications in ITU-T G.657.A1/A2/B2.
• Feature：Minimum bend radius 7.5mm, superior anti-bending property.Fully compatible with G.652 single-mode fiber.Full band (1260～1626nm) transmission.Low PMD for high bit-rate and long distance transmission.Extremely low micro-bending attenuation,applicable for all optical cable types including ribbon cable.High anti-fatigue parameter ensures service life under small bending radius.
• Application：All cable constructions, 1260～1626nm full band transmission, FTTH high speed optical routing, optical cable in small bend radius, small-size optical fiber cable and device, L-band.
Advantages:
G652D: Marginally lower attenuation and lower splicing losses, when splicing like fibres. Providing longer cable networks.
G657A2: Smaller cable and cords installation radii, providing for low-cost installation, miniaturisation and higher density connectorization.
G657A2 optical fibre in patch cords provide an improved bend radius and flexibility, which may allow for better cable management and routing in congested areas. The improved bend radius may also allow for increased density in high-density patching fields. G657A2 optical fibre is becoming very popular in the Data Centre and Enterprise network deployments.
G.657.A1 vs G.657.A2
G.657.A2 is also compliant with G.652.D while having a tighter minimum bend radius of 7.5mm, compared to 10mm for G.657.A1.
Because of its tighter bend radius and compliance with G.652.D, G.657.A2 is popular for use in tighter spaces within high density patching fields in data centres. Many of our customers from larger telecommunication companies also ask for G.657.A2 for the same reason.
When using G.657.A2, it is recommended that the smallest cable sheath diameter is used so the sheath does not restrict the cables minimum bend radius. Similarly, short booted connectors are also specified as often the tightest bend is at the connection point. For similar reasons of maintaining performance and maximising the benefit of using G657.A2 fibre, these cables are made with a lower loss ferrule and polished to give an IL (typical) <0.15dB and <0.20dB (Max).
G652D and G657A2 specifications refer to the glass and cable construction of optical fibre and are generally the fibres of choice in optical fibre patch leads for singlemode systems.
ITU-T G652D singlemode fibres have been used in all networks for more than 30 years. Being backwards compatible, this makes for easier maintenance/repair (splicing fibres of the same type). The G652D fibre Mode Field Diameter is 10.4µm @1550nm.
G652D fibres provide marginally lower loss transmission, which is better in facilitating long distance communication links (up to and greater than 100km).
However, G652D fibres have limited bend resistance.
G657A2 fibres are used in advanced access cable network installation, where higher bend resistance is required for smaller cable jointing pits and also allows for cable and hardware miniaturisation.
G657A2 fibres are fully compatible with G652D fibres. The G657A2 fibre Mode Field Diameter is 9.8µm@1550nm. Splice losses are slightly higher when splicing the two different fibres together.
G657A2 fibre has greater resistance to bending (macrobend) losses (see figure below), and facilitating low-cost deployment techniques.
G657A2 - Bend Intensive Fiber
G657A2 is one of the four specifications defined by the ITU-T under the G657 category. This version provides information about the construction of bend intensive fiber and optical fiber cables. Thus, G657A2 cables are used in network installations where higher bend resistance is necessary. The G657A2 is a powerful solution for access networks where frequent bending and joining of cables and hardware miniaturization is observed. Here, it is important to note that the G657A2 fibers are fully compatible with the G657D fibers.
Benefits of G657A2 fibers
Ideal for smaller cable installation radii
Cost-effective for access networks
Supports higher density applications and miniaturization
Offers improved flexibility
Technical Specifications
|
Attributes |
specification |
||
|
Dimensional Specifications |
Cladding Diameter |
125.0±0.7 um |
|
|
Cladding Non-Circularity |
≤1% |
||
|
Coating Diameter |
245±10 um |
||
|
Coating-Cladding Concentricity |
≤12 um |
||
|
Coating Non-Circularity |
≤6 % |
||
|
Core-Clad Concentricity |
≤0.5 um |
||
|
Fiber Curl (radius) |
≥4 m |
||
|
Delivery Length |
2.05-50.4( km/reel) |
||
|
Optical Specifications
Optical Specifications |
Mode-Field Diameter (MFD) |
@1310nm |
8.6±0.4 um |
|
@1550nm |
9.7±0.6 um |
||
|
Attenuation |
@1310nm |
≤0.35 dB / km |
|
|
@1383nm |
≤0.35 dB / km |
||
|
@1550nm |
≤0.21 dB / km |
||
|
@1625nm |
≤0.23 dB / km |
||
|
Attenuation VS. Wavelength |
@1285-1330nm, Ref. λ@1310nm |
≤0.04dB / km |
|
|
@1525-1575nm, Ref. λ@1550nm |
≤0.03dB / km |
||
|
Point Discontinuity |
@1310nm |
≤0.05 dB |
|
|
@1550nm |
≤0.05 dB |
||
|
Polarization Mode Dispersion（PMD） |
Maximum Individual Fiber PMD |
≤0.2 ps/(km1/2) |
|
|
PMD Link Design Value （M=20, Q=0.01%） |
≤0.1 ps/(km1/2) |
||
|
Typical Value |
0.04 ps/(km1/2) |
||
|
Zero Dispersion Wavelength(λ0) |
1312±12 nm |
||
|
Zero Dispersion Slope(S0) |
≤0.092 ps/(nm2.km) |
||
|
Dispersion |
1550nm |
≤18 ps/(nm.km) |
|
|
1625nm |
≤22 ps/(nm.km) |
||
|
Cable Cutoff Wavelength λcc |
≤1260 nm |
||
|
Mechanical Specifications |
Proof Test |
≥9.0N, ≥1.0%, ≥100Kpsi |
|
|
Dynamic stress corrosion susceptibility parameters Nd |
≥20 |
||
|
Coating Strip Force |
Average |
1.5 N |
|
|
Peak |
1.3-8.9 N |
||
|
Macrobend Loss |
1 turn, Φ20mm@1550nm&1625nm |
≤0.75 dB，≤1.5 dB |
|
|
10 turns, Φ30mm@1550nm&1625nm |
≤0.25 dB，≤1.0 dB |
||
|
Environmental Specifications |
Temperature Dependence（-60℃ to 85℃ ,@1310nm&1550nm&1625nm） |
≤0.05 dB / km |
|
|
Water Immersion（23±2℃, 30 days@1310nm&1550nm&1625nm） |
≤0.05 dB / km |
||
|
Dry Heat Soak（85±2℃, 30 days@1310nm&1550nm&1625nm） |
≤0.05 dB / km |
||
|
Damp Heat（85±2℃, at 85%RH, 30 days @1310nm&1550nm&1625nm） |
≤0.05 dB / km |
||
Product Picture
Our Company
workshop
workshop
workshop
workshop
Why choose us?
- Our company is constantly innovating and improving our optical fiber products to meet changing market needs.
- The main materials of our Bend Insensitive G.657.A2 Optical Fiber are all from well-known brands, focusing on product quality, paying attention to efficiency, and providing users with the most competitive products.
- Our optical fiber products are versatile and can be used in various applications.
- The matters promised to customers must be resolutely done, and at the same time safeguard the legitimate rights and interests of the enterprise; Employees should be honest, loyal to the enterprise, sincere in treating customers, seeking truth from facts, and keeping promises.
- Our optical fiber products are designed with simplicity in mind, ensuring ease of installation and use.
- We will firmly focus on the main business, improve quality and efficiency, transform development and innovate management.
- We offer a range of payment options for our optical fiber products, including PayPal, credit card, and bank transfer.
- Our vision is to work together to build a green, low-carbon, safe and environmentally friendly society.
- Our production facility is equipped with modern machinery and technology for optical fiber products.
- Cultural traits is to highlight the personalized characteristics of the enterprise culture, is the personality of the enterprise culture grasp and characteristics of the description, is the cultural gene of the enterprise.
Hot Tags: bend insensitive g.657.a2 optical fiber, China bend insensitive g.657.a2 optical fiber suppliers, fiber components, sc to lc splitter, sfp fiber, damaged fiber optic cable, ftth products, multimode om3
You Might Also Like
Send Inquiry