Semiconductor Diodes and Their Building Materials

Semiconductors have revolutionized the electronics industry. Almost all modern devices and equipments that we enjoy in today’s day to day life make use of semiconductors….

Optical Attenuators and where they can be used in a Fiber Optic Link

Optical attenuator is used to reduce the optical power level of an communication signal, in an optical fiber used in a fiber optic communication link….

Refractive index and Refractive index profiles of Optical fibers

In simple words to understand, refractive index is the relative speed of light in a medium compared to the speed in vacuum. Thus if a…

Chromatic Dispersion in Single mode Fibers and Measurement Equipment

Dispersion limits the transmission distance in optical communications. In simple terms, broadening of pulse as it travels along the length of an optical fiber is…

Choice of Optical Fibers as Communication Channel

Researchers in telecommunication had been in search of a medium that will allow long distance transmission with low loss until they develop optical glass fibers….

Ceramic and Metallic Ferrule Connectors

Fiber optic connectors made of ferrules are known as Ferrule connectors. Ferrule connectors have two cylindrical plugs. Other parts of a ferrule connector include an…

Analog and Digital Signals

In modern day communication systems, transmission data is available in either analog or digital format. Transmission signal varies continuously along the time axis in the…

Alexander Graham Bell and Photophone

Photophone, which was developed by the legend Alexander Graham Bell and his assistant Charles Sumner was the predecessor of the current fiber optic communication. When…

History of Use of Light for Communication

One or other forms, the light has been guiding human beings through out their evolution and struggle for existence. The basic form of light we…

How Optical Fibers Transmit Messages?

Optical fiber is thin, long silica or plastic, cylindrical in structure that has found its applications in telecommunications, sensors, health industry, imaging etc. The extremely…