Raman fiber amplifier (RFA)
Raman fiber amplifier (RFA) A Raman fiber amplifier (RFA) is based on an intrinsic non-linearity present in the form of a stimulated Raman scattering (SRS) mechanism. When a high-power optical…
Semiconductor Optical Amplifiers (SOA)
Semiconductor Optical Amplifiers (SOA) A semiconductor optical amplifier (SOA), also known as a laser amplifier, is an active medium of a semiconductor laser. In other words, an SOA is a…
Insulated Gate Bipolar Transistor (IGBT)
Insulated Gate Bipolar Transistor (IGBT) There are numerous types of power semiconductor switches and among these switches, the insulated gate bipolar transistor (1GBT), which combines some of the features of…
Optical Amplifier | Power Amplifier, In-line, Pre-amplifier
Optical Amplifier Optical Amplifier: An optical amplifier is a widely used device in optical fiber communications for the purpose of amplification the optical signal generated by an optical transmitter. The…
Fiber Fabrication Methods or Techniques
Fiber Fabrication Methods Fiber Fabrication Methods or Techniques: Fabrication of all-glass fibers is a two-stage process. The first stage consists of producing a pure glass and converting it into a…
Diversity Techniques in Wireless Communication
Diversity Techniques Diversity is a good technique applied in mobile communication receiver circuits where there are multipath environments. The diversity techniques use the nature of the propagation path characteristics for…
Radar Modulator
Radar Modulator Radar Modulator: A modulator is a heart in the transmitter. it not only controls the radiofrequency energy to be produced in sharp pulses but also controls the repetition…
Floating Point Numbers
Floating Point Numbers Floating Point Numbers: All the numbering systems have been in the category of base r fixed point numbers. Fixed point number means that the fractional point (i.e.,…
Number System | Binary, Decimal, Hexadecimal
Introduction to Number Systems Number System: A number is a collection of digits and it is represented by (N)b, where b is the base and N is the number. The…
Ultrasonic |Magnetostriction, Piezoelectric generator
Ultrasonic Ultrasonic: The term 'ultrasonic' is used in acoustics to denote the frequencies which are beyond the range of human hearing. Thus ultrasonic waves are sound waves of frequencies above…