Electronic Terms

Optical Fiber

Definition: An optical fiber is a thin flexible strand made up of glass(silica) or plastic that is used for transmitting optical (light) signals. Usually, the diameter of the optical fiber is more as compared to human hair. More specifically, we can say that it is a waveguide that has the ability to transmit electromagnetic waves …

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Step Index Fiber

Definition: Step index fiber is a type of optical fibers that holds its classification on the basis of refractive index. Step index fiber is that optical waveguide, that has a constant refractive index within the core and another constant refractive index within the cladding. The refractive index of the core is somewhat more as compared …

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Optical Isolator

Definition: An optical component that permits the propagation of the light signal in one direction only and completely blocking the other direction is known as Optical Isolator. Faraday effect is the basis of working of this device. Basically, when a light ray is allowed to pass through the fiber then there are some chances that …

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Optical Modulation

Definition: Optical Modulation is the process by which a light wave is modulated (modified) according to a high-frequency electrical signal that contains information. These modified light waves are then transmitted either by a transparent medium or through an optical fiber cable. More specifically, we can say that it is the process by which an electrical …

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Optical Line Terminal (OLT)

Definition: Optical Line Terminal or optical line termination is a device that basically acts as a part of a passive optical network (PON). It is present in the central office of the network and manages the transmission and reception of information across the overall network. Optical line terminal is abbreviated as OLT. OLT do so …

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Dispersion in Optical Fiber

Definition: The term dispersion is widely used when we talk about travelling of light pulse, more specifically we can say light-wave transmission. Dispersion in an optical fiber is the spreading of light pulses when the wave travels through an optical fiber from an end to another. It results in some variation of the actually transmitted …

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Total Internal Reflection (TIR)

Definition: When a light ray travels from a denser medium to a rarer medium, with an angle of light incidence more as compared to a critical angle then the incident ray gets reflected back to the same medium. This phenomenon is called Total Internal Reflection. It is abbreviated as TIR. Now the question arises why …

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Dual Trace Oscilloscope

Definition: In dual trace oscilloscope, a single electron beam generates 2 traces, that undergoes deflection by two independent sources. In order to produce two separate traces, basically, 2 methods are used, known as alternate and chopped mode. These are also known as the two operating modes of the switch. Now the question arises what is …

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Graded Index Fiber

Definition: Graded Index fiber is another type of optical fiber in which the refractive index of the core is non-uniform. This non-uniformity is present because the refractive index is higher at the axis of the core and continuously reduces with the radial movement away from the axis. However, the refractive index of the cladding is …

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