Advantages and Disadvantages of Fiber Optic Transmission in Telecommunications

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The popularity of fiber optic transmission continues to increase within telecommunication networks around the world, driven by the rise in the demand for higher bandwidth and faster connectivity.

This blog explores the advantages and disadvantages of fiber in telecommunication networks.

Fiber Optic Transmission

Fiber optic communication systems often consist of three main parts. They are: an optical transmitter, a cable and an optical receiver.

Optical Transmitters

An optical transmitter converts electrical signals into optical signals. The devices used to transmit optical signals are often LED’s (light-emitting diodes) or laser diodes.

Fiber Optic Cables

The fiber optic cabling carries the optical signal (in the form of light), from the transmitter to the receiver.

There is a huge range of optical cables available and their use varies depending on the application required.

Optical Receivers

The optical receiver reconverts the optical signal back into an electrical signal. The key part of most optical receivers is the photodetector.

Advantages of Fiber Optic Transmission

There are a number of advantages to using fiber optic transmission systems:


No other cable-based transmission medium can offer the same bandwidth that fiber does. In comparison to copper cabling, for example, the volume of data that can be transmitted is far greater with fiber.


Fiber transmission can transmit with much less power loss across larger distances.


In comparison to other mediums, fiber is extremely resistant to inevitable external electromagnetic interference, which means it has a very low rate of bit error.


With data security concerns currently rife in telecommunications, fiber transmission offers a level of increased security that cannot be matched by other materials. This is because there is no way of ‘listening in’ to electromagnetic energy that “leaks” from the cable.

Disadvantages of Fiber Optic Transmission

Although there are substantially more advantages than disadvantages in the use of fiber optical transmission, the disadvantages shouldn’t be ignored.

Installation Challenges

Splicing fiber optic cabling is not easy and if they are bent or manipulated in shape too much they will break. They are highly susceptible to being cut or damaged during installation or through construction activity.


Fiber optic cable is made of glass, which is more fragile than electrical wires such as copper cabling. Not only that, but glass can be damaged by chemicals such as hydrogen gas that can affect transmission. Particular care has to be taken with laying undersea fiber cabling because of its fragility.

Attenuation and Dispersion

With long distance transmission, the light will attenuate and disperse, which means additional components such as EDFA (Erbium-doped fiber amplifier – an optical repeater device that is used to boost the intensity of optical signals being carried through a fiber optic communications system) are required.


The cost to produce fiber cabling is higher than that of copper


Due to its efficiency and capacity, fiber optic transmission is being widely used and continues to be adopted for data transmission in place of metal wires. Traditional materials such as copper twisted-pair cabling or coaxial cabling are being steadily replaced by modern fiber optic options and as the demand for more speed and greater bandwidth continues to increase fiber optics will continue to be deployed in future telecommunication networks.

Yuliya Danilenko

Account Manager

Yuliya Danilenko has over four years of experience as an International Account Manager, specializing in Level 3 Remote Technical Support.

She assists large-scale multinational organizations, fixed and mobile operators, and leading equipment manufacturers worldwide in supporting legacy telecom equipment, generating additional revenue, and reducing operational expenses (OPEX).

In her leisure time, she loves travelling and exploring different cultures.

Javier Amado

Account Manager

As an international Account Manager for Carritech Telecommunications, Javier assists large fixed and mobile operators in supporting their legacy telecom equipment, particularly in Italy and LATAM. He ensures that the company delivers the best value to customers across all services specialized in legacy telecom equipment.

In his free time, Javier enjoys sports and is an avid fan of soccer and motorsports, including Formula 1 and MotoGP. He also considers himself a lifelong learner, seizing every opportunity for growth.

Aligned with the values of Carritech, Javier is committed to helping more operators worldwide achieve their environmental goals and continue to leave a positive footprint.

Christian Mekdad

Account Manager

Christian brings over a decade of IT industry experience and 5 years in the telecom industry to his role as an Account Manager at Carritech, with a focus on optical transceiver solutions and GPON technology.

As a trilingual person speaking French, Spanish and English, he manages operations in French-speaking countries and communicates with international traders from around the world. Christian will step outside his comfort zone to find the most effective solutions to your challenges.

In his free time, Christian enjoys playing rugby and trekking in the mountains of Madrid.

Luis Alvarez

Account Manager

Luis Alvarez brings more than 5 years of experience in the telecom industry. With a focus on optical transceiver solutions, he adeptly meets the diverse needs of Carritech’s international clientele, particularly in Spain and Latin America.

Known for his consultative approach, Luis ensures clients receive customised, effective network solutions.

When not enhancing telecom infrastructures, Luis enjoys working out, exploring scenic routes with his dog and participating in local events.

Shane Driver

Senior Account Manager

Shane Driver brings over 12 years of telecom industry experience to his role as Senior Account Manager at Carritech.

With a focus on Network Hardware Support Services, Shane meets the diverse needs of Carritech’s international clients, particularly in the UK, Ireland, and mainland Europe. Known for his customer-centric approach, Shane ensures his clients receive support solutions that align with their unique requirements.

Outside of telecommunications, Shane enjoys swimming, playing golf, and spending time with his young family.

Yura Saskevych

Director of Global Accounts

Yura Saskevych has over a decade of vast experience in sales of telecommunication hardware and network services support. He is the Director of Global Accounts at Carritech and holds a Master’s Degree in Electrical Engineering.

Having been focused extensively on transport (Optical and MW), Access and Core Networks, Yura has successfully helped customers worldwide extend the life of existing telecommunication networks, reduce expenses and meet their environmental goals.

With a strong background in the telecom industry, Yura will engage with clients with a customised approach, provide required solutions and ensure that their telecom systems are running smoothly.

Adept at working simultaneously on multiple accounts with the highest accuracy and professional salesmanship Yura collaborates closely with engineers, technicians, the procurement department and project managers to plan, adapt, and optimize customer network solutions.

Yura is passionate about delivering innovative and cost-effective solutions that meet performance, security, and quality standards.

When he’s not enhancing telecom infrastructures, he enjoys doing sports, gardening and exploring scenic routes.

Miguel Asín Barcos

Sales Director

Miguel Asín Barcos serves as the Sales Director at Carritech, where he focuses on driving revenue growth and enhancing customer satisfaction.

Based in Madrid, Miguel draws on his more than 20 years of experience in the telecom industry to lead and support his sales team.

Outside of telecommunications, he enjoys football, watching movies, and spending time with his family.

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