Stimulated Raman Scattering

Spontaneous Raman scattering is named after the Indian physicist Sir Chandrasekhara Raman. Raman scattering can occur in all materials, but the dominant Raman lines in silica glass are due to the bending motion of the Si-O-Si bond. The theoretical description of stimulated Raman scattering (SRS) has been presented in several publications. The Raman scattering can be described using the harmonic oscillator model. The Raman scattering reflects the resonances of a given material. In the case of optical fibers, they are basically made of fused silica, which is an amorphous material. If only the pump wave is launched into the fiber, the generation of the Stokes wave begins with spontaneous Raman scattering. Raman amplifiers offer some important advantages compared to other types of optical amplifiers. Raman gain can be provided by every fiber. Raman gain can be achieved at any wavelength, provided that an adequate pump source is available. Controlled Vocabulary Terms Fiber lasers; harmonic oscillators; optical fibers; stimulated Raman scattering