Fiber Optic Cable

Fibconet-Your Trusted Fiber Optic Cable Supplier

1. What is Fiber Optic Cable

Fiber optic cables are composed of thin glass strands, known as optical fibers, that guide light over considerable distances using total internal reflection.

These fibers consist of two layers of glass:

  • Core: carries the actual light signal and
  • Cladding: a layer of glass that surrounds the core.

The cladding’s lower refractive index than the core ensures total internal reflection within the core.

Our fiber optic cables can function in duplex pairs for simultaneous transmission and reception, or a single strand can carry both signals.

We offer two primary types of fiber optic cables: Single Mode Fiber (SMF) and Multi-Mode Fiber (MMF), distinguished by their core size.

  • MMF, with its wider core, allows multiple modes of light to propagate. Making it suitable for short distances and lower bandwidth applications.
  • SMF has a narrow core that allows only a single mode of light to propagate. Ideal for long-distance transmission and higher bandwidth applications.


As an experienced fiber optic cable manufacturer, Fibconet offers cables with the following advantages:

  • High Carrying Capacity: Our cables offer very broad bandwidth, with capacity in the THz or Tbits/s range.
  • Low Transmission Losses: Our fiber optic cables exhibit less than 0.2dB/km transmission loss, significantly lower than microwave or twisted copper pair alternatives.
  • No Heat Dissipation: Unlike conventional cables, fiber optic cables do not dissipate heat, enhancing their longevity and safety.
  • Immunity to Cross-Talk and Electromagnetic Interference: Our cables are resistant to cross-talk and electromagnetic interference, ensuring reliable and clear signal transmission.

2. Essential Materials in Fiber Cable Production

Each component of our fiber optic cables is carefully selected to ensure optimum performance and durability.

Butterfly cable production line
Butterfly cable production line

Butterfly Cable Materials:

  • Optical Fiber (A1 and A2): The core transfer medium in our cables.
  • Reinforcing Parts: These include metal wire (phosphated and galvanized) and non-metallic strengthening agents such as FRP and aramid yarn, providing durability and resilience to our cables.
  • Sheath: Low Smoke Zero Halogen (LSZH) material, reducing the amount of toxic and corrosive gas emitted during combustion.

Circular Cable Materials:

  • Optical Fiber: The light transmission medium.
  • Reinforcement: Aramid, a strong synthetic fiber for reinforcement.
  • Sheath: LSZH or Thermoplastic polyurethane (TPU) , depending on the application and performance requirements.

G657B3 Cable Materials:

This cable type primarily uses TPU material, known for its hydrolysis resistance, friction resistance and excellent chemical resistance.

TPU offers good bending performance, making it suitable for military, field, and other demanding applications.

Aramid Yarn:

We source our aramid yarn from DuPont in the United States. This material is used for strain relief in fiber optic cables.

Both fiber strain and cable strain are evaluated according to specific national and domestic standards, such as GB/T.

Polyester Yarn:

Used for filling, polyester yarn plays a critical role in preventing the sheath and fiber from sticking off.

Although it can introduce strain during stretching, which may affect transmission performance, its main function is to provide additional structural support to the cable.

3. Fiber Optic Cable Structure

fiber optic cable Structure
fiber optic cable Structure

Fiber core (single mode and multi mode core) has a high refractive index, used for transmission sightseeing, generally 9~ 10um (single-mode) 50 or 62.5 (multi-mode).Brand of our fiber is Fiberhome and YOFC.

Cladding: Low refractive index to provide total reflection conditions, diameter is generally 125um.

Coating layer: Protect the fiber core and cladding, enhancing the mechanical strength.
The diameter is 245um, the coating layer is generally two layers: the inner layer with soft coating and the outer layer with more hard material.

Fiber optic cable reinforcements: Play a crucial role in enhancing the load-bearing and tensile resistance capabilities of fiber optic cables during installation.

  • Metallic Reinforcements: These types of reinforcements are made from metals known for their superior strength and durability. Examples include phosphorized steel wires and stainless steel wires.
  • Non-Metallic Reinforcements: Non-metallic reinforcements are made from materials that offer excellent tensile strength without the added weight of metals. Examples include GFRP (Glass Fiber Reinforced Plastic) rods, KFRP (Kevlar Fiber Reinforced Plastic) rods, FFRP (Fiberglass Fiber Reinforced Plastic) rods, glass yarn and aramid fibers.

Bare fiber: Including fiber core and cladding


4. Types of Fiber Optic Cable

Fiber Optic Cable mainly divide into Indoor series,FTTH outdoor series and Special scene optical cable series.

Indoor Optical Cable Series

  • Tight Buffer Optical Fiber Cable: Features an optical fiber coated with a layer of buffer material, extruded and cured with ultraviolet (UV) light.
  • Single-Core Interior Cable: Boasts a small bending radius and volume for ease of installation.
  • Double Fiber Cable: Features an 8-shaped structure with high modulus aramid reinforcement for extra durability.
  • Multi-Core Indoor Bunched Optical Cable: Offers more cores in a compact structure, providing a small size and lightweight solution.
  • Flat Indoor Optical Cable: Easy to construct, connect and route, with flame retardant properties for enhanced safety.

FTTH Outdoor Optical Cable Series

  • Butterfly Fiber Optic Cable: Equipped with parallel reinforcements, providing sufficient tensile strength and compression resistance. Flame retardant with anti-extended flame and self-extinguishing properties.
  • Self-Supporting Butterfly Cable: Self-supporting structure that offers sufficient tensile strength and compression resistance.
  • Self-Supporting Circular Lead-In Cable: Features an 8-font design, providing excellent stripping performance.
  • Pipes Butterfly Cable: The double-layer sheath design offers superior mechanical performance over conventional butterfly cables.

Special Scene Optical Cable Series

  • Stretch Optical Cable: Enables convenient connections and supports large capacity data transmission. Lightweight and easy to construct due to the high-strength aramid.
  • MPO Optical Cable: Its small size facilitates easy laying and connecting. Colored optical fibers are easily distinguishable upon stripping.
  • Armored Optical Cable: Protected by a metal hose to shield against damage.
  • Waterproof Stern Line: Offers high resistance to lateral pressure, excellent moisture resistance, and a corrosion-resistant, waterproof, and UV-resistant outer sheath.
  • Field Optical Cable: High modulus aramid fiber offers sufficient tensile strength. Matte polyurethane material provides concealment and wear-resisting corrosion resistance.
  • Photoelectric Composite Cable: Combines communication fiber optic cable and electric cable to transmit both signals simultaneously. Added protection by bulletproof braided silk.

5. Production Line Show

Fibconet not only provides finished cables but can also complete production line equipment for you.

Optical cable forming machine
Optical cable forming machine
SZ stranded optical cable production line
SZ Stranded Optical Cable Production Line
Optical Fiber Parallel Equipment
Optical Fiber Parallel Equipment
Tight fiber optic production line
Tight Fiber Optic Production Line

6. Our Package Way

Optical cable packaging: leather cable (wooden drum, stretch film, carton)
Optical cable: (fumigation-free wooden drum, plywood, carton)

General Packing list

Figure 8 cable package data
Figure 8 cable package data

7. Quality Standard

Our company had passed through IOS9002/IOS9001 quality management system certification. We pay high attention to product quality.

Therefore, we are equipped with world-adcanced production equipment, andhigh-precision inspection equipment.

Our fiber optic cable conform to UL, ETL, RoHS, CPR certification. You can view for more information about our inspection equipments.

8.Hot-Sale Product Introduction

ADSS fiber optic cable
ADSS fiber optic cable

Available with two types of sheaths, PE and AT, the ADSS optical cable is a highly durable solution designed for spans ranging from 100m to 1500m.

The structure of the ADSS optical cable adopts a loose-tube layer twisted structure, offering numerous advantages:

  • Continuous Erection: The cable can be installed without interruption, facilitating smoother installations.
  • AT Sheath: The adoption of an AT sheath provides strong corrosion resistance.
  • Lightweight Design: The cable is lightweight with a small diameter, making installation and handling easier.
  • Aramid Fiber Armoring: The armoring process using aramid fibers significantly improves the tensile strength of the optical cable.
  • Large Span: The cable is suitable for large spans, with a maximum span of over 1500m.

How to choose the span of ADSS optical cable?

Choosing the span for ADSS optical cable involves considering several factors.

Firstly, based on the tension requirements of the cable. If the span is too large, it could increase the tension on the cable, potentially causing it to break or get damaged.

Other factors to consider include the design meteorological conditions of the power line, span situation, tower design operating conditions, line angles and height differences. These can help determine the mechanical performance of the ADSS optical cable.

In practical applications, the ADSS optical cable is fixed on the tower pole with specialized hardware, so the coordination between the cable and hardware is crucial.

Contact us for free samples!

9. How to Select Fiber Cable

As a leading fiber optic cable manufacturer, Fibconet emphasizes the importance of choosing the right fiber optic cable for your specific needs. Here are some key factors to consider:

  1. Fiber Cores: The number of fiber cores required depends on the device interface connected by the fiber and the device’s communication mode. Typically, the total number of equipment interfaces multiplied by 2, plus an additional 10% to 20% for spares, defines the number of optical cores needed. However, when devices use serial communication and device multiplexing, fewer cores may be required.
  2. Materials: The selection of materials used in optical cables is crucial for their longevity and performance. At Fibconet, we prioritize top-tier materials to ensure the optimal lifespan of our cables.
  3. Usage Environment: Depending on their use, optical cables can be categorized as aerial, direct-buried, pipeline, submarine, and metal-free optical cables.

10. Quality Standards

Cable Sheathing

Indoor cables typically employ PVC or flame-retardant PVC, while outdoor cables use high-quality, uniform, black polyethylene.

Quality sheathing ensures a smooth, glossy finish, excellent flexibility and easy peel-off without sticking to internal components.

Fiber Quality

We use top-grade fiber cores from reputable manufacturers.

Lower quality cables often use inferior fiber grades and smuggled fibers of unknown origin, which can result in compromised performance.

Reinforcing Steel Wires

For outdoor cables, we use phosphorized steel wires with a high tensile strength that resist corrosion and don’t increase hydrogen loss.


Quality cables use corrugated steel tape with anti-rust coating on both sides.

Unlike lower-quality cables that use ordinary sheet metal with rust protection only on one side.

Loose Tubes

The tubes housing the fibers should be made from PBT material.

Offering high strength, resistance to deformation and anti-aging properties.

11. Why Choose Us

Fibconet boasting 12 years of dedicated experience in crafting high-quality fiber cables tailored to our customers’ unique requirements.

As a leading fiber optic cable manufacturer, we offer a comprehensive range of products, including drop fiber optic cables, indoor fiber cables and outdoor fiber cables.

Our focus isn’t just on manufacturing fiber optic cables. We strive to provide comprehensive solutions that meet our customers’ specific needs in the most efficient and reliable manner.

We combine our deep industry knowledge with innovative manufacturing processes to create products that set new standards in performance and durability.

Choose Fibconet, your trusted fiber optic cable manufacturer, for all your fiber optic cable needs!

12. FAQ

① What are the fiber core coloring requirements?

Optical fiber core coloring requirements

② The main difference between armored optical cable and unarmoured optical cable.

Compared with the non-armoured cable, the armored cable has an additional layer of optical fiber protection.

It mainly meets the requirements of anti-rat bite and anti-humidity.

The material of the protective layer is mostly metal: such as stainless steel hose, steel strip, aluminum strip.

③ The main difference between optical fiber G657 series is?

The bending performance (smaller radius) is different.

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