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An Introduction to Optical Fiber

This free online course on fiber optics, will reveal the many technological advancements that fiber optics have created.

Publisher: NPTEL
This free online course introduces you to the meaning of optical fiber and focuses on how fiber optics work. This course highlights the advantages of having fiber optic cables and how this has lead to daily leaps forward in the telecommunication industry. In addition to this, you will explore the advancement in such diverse areas as medicine, mechanics, and plumbing, in which fiber optics has made an immense impact.
An Introduction to Optical Fiber
  • Duration

    3-4 Hours
  • Students

  • Accreditation






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An Introduction to Optical Fiber is an introductory course on optical fiber. Optical fiber, also called fiber optics, are microscopic strands of very pure glass, each about the same diameter of a human hair. Thousands of these optical fibers are arranged in bundles in optical cables and are used to transmit light signals over long distances. The capacity of carrying information in a fiber optic cable is far superior to wires or coaxial cables because they carry light. The regularity of light beams that travel along optical fibers is around two hundred trillion cycles per second. Light travels down a fiber optic cable by leaping off the walls of the cable regularly. Each light particle (photon) bounds down the pipe with continued internal mirror-like reflection. Cladding is another layer of glass, wrapped around the core. It is there to keep the light signals inside the core. Fiber optic cables are inexpensive to produce, they do not conduct electricity, are not degraded by lightning storms, and they are small in size. In this course, you will discover how fiber optics work and the different types of fiber optic cables.

In the course, you will learn about single and multimode fiber. There are two types of optical fibers, single-mode and multi-mode. Single-mode, is used for long distances, has small cores and transmits infrared laser light. The multi-mode optical fiber, is usually used for short distances, has large cores and transmits infrared light. Next, this course explains how fiber-optic cables transmit data via fast-travelling pulsations of light. Lower attenuation and interference allows an optical fiber to have significant advantages over the copper wire in long-distance, high-bandwidth applications. The information transmitted by fiber optics is typically digital information generated by computers, telephone systems and cable television companies. Finally, you will learn the components that are needed to facilitate communication through an optical communication network; components like light signal transmitters, optical fiber, and the photo-detecting receiver. The transmitted signal that travels through the fibers does not radiate. Moreover, the signal cannot be easily tapped from a fiber. Consequently, optical fiber communication provides a hundred per cent signal security. It is no wonder that it is becoming commercialized. To package fiber into a commercially viable commodity, it typically is protectively covered by using ultraviolet (UV), light-cured acrylate polymers, then finished with optical fiber connectors, and subsequently assembled into a cable.

Fiber optic cables are used in hundreds of industries around the world. Due to the versatility of fiber optics, the professional opportunities are limitless. This course is an exciting option for anyone contemplating a career in fiber optics, especially scholars who want to know more about what fiber optic workers do on the job and how to get into the profession. A career in fiber optics will allows you to work anywhere in the world. You can work everywhere from rural districts to big cities, outdoors or indoors, in large or miniature office buildings, on the ground, in the air or inside a data centre. There are many exceptional benefits to working with fiber. You don’t need a high-level university degree, simply specialized skill experience. Fibre optic systems have enabled scientists to make numerous important strides in the telecommunication, mechanical and medical fields. The realm of fibre optics has opened many opportunities for solving technological predicaments and has improved human civilization. If you have an interest or dream to work and have a career in fiber optics, why wait? Start this course today and advance your career in this dynamic field!

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