Why choose optical fiber not Copper

- Sep 07, 2018-

The use of optical fiber has been growing over the years and has far exceeded the use of Copper. Nowadays, people prefer to get optical fiber over Copper cables.Experts believe that the market size will grow up to $9 billion by 2025. Today we will talk about why choose optical fiber not copper.

Longer transmission distance

Optical fiber overtakes UTP at transmission distances. There are 1.1 million kilometers of fiber cables around the world. A single mode cable transporting can up to 2km, while the UTP is up to 100m. the transmission distance is much longer than UTP’s.

Less maintenance

In general, optical fiber requires less maintenance than UTP. As a matter of fact, it’s recommended that the wires are installed and left alone (aside from normal check-ups), as some maintenance might cause even more harm to the fiber. 

Faster transmission speed

Fiber optic versus copper transmission can be viewed as the speed of photons versus the speed of electrons. Photons travel at the speed of light, whereas electrons used in copper travels at less than one percent of the speed of light. Although fiber optic cables do not reach the speed of light, they are only about 31% slower. So you can see that there is a huge inherent speed difference between fiber and copper.



A few years ago, the overall price of fiber cable was nearly twice that of copper, but now the price between fiber and copper has narrowed and fiber components and hardware have steadily decreased.


In recent years there are says that Optical Fiber can be tapped in as easily as Copper, But it’s definitely harder to get information from optical fiber. Since optical fiber does not transmit electricity, it does not radiate signals and cannot be tapped – copper does use electricity and is easily to be tapped, which can cause the entire system to fail.

A broken or damaged optical fiber can be detected extremely quickly by using a number of monitoring techniques including monitoring the actual power transmission or the transmission of a pilot signal.



Optical cables are less susceptible to environmental factors than copper cables. For example, copper will experience a large amount of quality degradation over a distance of two kilometers, while using of fiber optic cables of the same distance provides extremely reliable data transmission.



Copper has very limited bandwidth although it is perfectly adequate for a voice signal, while fiber provides standardized performance up to 10 Gbps and beyond.

Fiber links provide over 1,000 times as much bandwidth as copper and can travel more than 100 times further as well. A typical bandwidth-distance product for multi-mode fiber is 500 MHz/km, so a 500 meter cable can transmit 1 GHz. While twisted pair optimized for high data rates (Cat 6) can transmit 500 MHz over only 100 meters. In addition, the signal loss over 500 meters in fiber is negligible, but copper has very high loss at high frequencies.

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