Prior to the development of fiber amplifiers, signal attenuation, or loss, limited the distance over which an optical signal could be transmitted without regeneration. As a result, electrical amplification equipment was installed in numerous locations throughout the network to provide regeneration of optical signals. Optical amplifiers now enable optical signals to travel very long distances without having to revert to the electrical domain.
Raman amplifiers are two key optical amplification techniques.
Oplink provides complete EDFA and Raman passive gain blocks and the complete suite of optical components necessary for optical amplifiers.