What Are Two Characteristics Of Fiber Optic Cable?

Because of its unique physical structure and transmission principles, fibre-optic cable has two core characteristics: high speed, largecapacity and strong anti-jamming ability. These characteristics are described below:
1.High-speed, high-capacity transmission: breaking Traditional Bandwidth Limitations
Optical cables use optical signals to transmit information and transmission performance is much better than traditional copper cables. This is mainly reflected in the following:
Hypervelocity:
Theoretical limit: Single-mode fiber can transmission rates of up to terabits per second (Tbps), far exceeding the gigabytes per second of copper cables.
Practical applications: Modern fibre-optic networks deliver commercial transmission speeds of 400Gbps or even 800Gbps, meeting the high bandwidth demands of 5G and cloud computing.
Mega capacity:
Bandwidth: Optical fibre can reach the THz (terahertz) level, thousands of times the bandwidth available on copper cables.
Multiplex: Wavelength division multiplexing (WDM) allows the simultaneous transmission of dozens to hundreds of different wavelengths of light signals within a single fiber, further increasing capacity. For example, a C+L band WDM system can support 96 wavelengths with a total capacity of 9.6 Tbps.
Low-loss long-distance transmission:
Attenuation coefficient: Decay factor for single-mode fiber is as low as 0.2 dB/km (1550 nm wavelength), significantly lower than for copper copper cable over 20 dB/km.
Transmission distance: In the absence a repeater, single-mode optical fibre can transmit data over a distance of 80-100 km, while copper cable typically travel over a distance of no more than 100 m.
ii. High jamming resistance: ensuring stable signal transmission
Fiber optic cable adopts optical signal transmission, which is free from electromagnetic interference and possesses excellent physical protection:
Electromagnetic interference (EMI) resistance:
How it works: Optical signals are not affected by electromagnetic fields, so fibre-optic cables can be installed near strong electromagnetic fields such as high-voltage power lines and radio towers without the need for additional shielding.
Copper cables (such as network cables cables and coaxial cables) are susceptible to electromagnetic interference that distorts or disrupts signals. To reduce interference, shielding or twisting in pairs is required. Radio frequency interference (RFI) resistance:
Application Scenario: In high frequency electromagnetic environments such as radio communication and radar systems, optical cables provide stable signal transmission and avoid radio frequency interference.
For example, fibre-optic cables are widely used in airports, military bases and other locations to connect surveillance equipment to ensure that signals are not jammed by radar pulses.
Physical protection:
Corrosion Resistance: Fiber optic cables are typically made of polyethylene (PE) or polyvinyl chloride (PVC) and are acid, alkali and moisture resistant, suitable for harsh environments such as chemical plants and the seafloor.
Tensile Strength: Fiber optic cable a tensile strength can reach more than 2000N, can withstand large load or construction pressure.
Rodent Resistance: Some fibre-optic cables,such as GYTA53, have metal armor layer that protect rodents effectively.
Supplementary Note: Other Advantages of Fiber Optic Cables
In addition to these two features, fibre-optic cables have the following advantages:
Lightweight and flexible: Optical fibers are small in diameter (typically 0.25-0.9mm), light in weight and easy to bend and install. Highly classified: optical signals are difficult to eavesdrop on or intercept and are therefore suitable for high security situations such as military and financial sectors.
Long service life: Fibre-optic cables are made of stable material and are designed to last more than 25 years, far longer than copper cables of 10 to15 years.