Tunable Optical Filters
Tunable Optical Filters Tunable optical filters are active components that are mostly used at the receiver end of a WDM system. As the name suggests, its main function is to…
Transmission Losses in Optical Fiber Cable
Transmission Losses Various types of optical signal transmission losses in optical fiber cables result in less output power than required, thereby reducing the overall system capacity, net transmission bandwidth, transmission…
Erbium-Doped Fiber Amplifiers (EDFAs)
Erbium-Doped Fiber Amplifiers (EDFAs) Erbium-doped fiber amplifiers (EDFAs) make use of rare-earth elements such as erbium (Er3+) as amplification medium. It is doped into the fiber core during the manufacturing…
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…
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…