When buying an optical amplifier, what should we consider about besides the price? Of course, it’s the quality. But how can we determine the quality good or not? Then it comes to the properties. There are mainly three aspects to consider about according to the properties of optical amplifiers. 1. Gain, Input Power and Output […]
optical amplifiers
Passive Optical Amplifiers: EDFA, SOA and RFA
As optical signals travel through an optical fiber, they are attenuated. In long-haul applications, the signal is attenuated to the point where re-amplification is required. Traditionally, a device commonly referred to as a repeater accomplished this re-amplification. A repeater is basically a receiver and transmitter combined in one package. The receiver converts the incoming optical […]
Advanced Optical Components – Raman Fiber Amplifier (RFA)
Mostly, all optical amplifiers are used in optical communication. Generally, Brillouin type amplifier is not used in optical communication. For a particular use, the decision has to be made about which amplifier to be used. The EDFA amplifier is used in-line amplifier on account of its compatibility. On the other hand, Raman Fiber Amplifier (RFA) […]
Advanced Optical Components – Erbium-doped Fiber Amplifier (EDFA)
Many fiber optic applications, such as long-haul DWDM systems, require amplification of the optical signal. In the past, this entailed using expensive electronic repeaters at intermediate points every 100 km. Today’s modern long-haul DWDM systems use several advanced optical components to replace multiple repeaters with a single optical device. These optical devices which are called […]
Optical Amplifiers have Revolutionized the Long-distance Fiber Optic Communications
In situations wherein the primary issue is loss, optical amplifiers can indeed be used to amplify the signals without conversion into the electrical domain. Such Optical Amplifiers have truly revolutionized long-distance fiber optic communications. The purpose of an optical amplifier is to restore the signal power level, reduced due to losses during propagation, without any […]
Some Optical Factors about Affecting the Modulator
Multi-channel communication of different systems need to consider the combined information from different channels, the transmission of signal through a fiber optic link and the separation of a single channel receiver prior to routing to their destination. So the application of IO in this field is to provide optical multiplexer, the method of modulation and […]