Lecture
This lecture covers the fundamentals of Raman amplification in silica fibers, discussing the process of stimulated Raman scattering for signal transmission and amplification. It explains the spontaneous Raman scattering phenomenon, Raman gain spectrum, and amplifier characteristics such as optical gain coefficient and variations in pump and signal powers. The lecture also delves into small signal amplification, gain saturation, and Raman amplifier design, emphasizing the importance of optimizing the frequency of the Raman pump with respect to the signal. Advantages and disadvantages of Raman amplification, including variable wavelength application and distributed gain, are also explored.