Abstract
Direct amplification of light using optical nonlinear effects, such as stimulated Raman scattering (SRS) and stimulated four-photon mixing (SFPM) in fibers, is an attractive technology for ultra-long distance, high speed optical signal transmission and optical processing [1]. To realize cw amplification, SRS seems to be preferable to SFPM, because the former process does not require phase matching, and hence enables utilization of long, low-loss fibers to reduce requisite pump power.Direct amplification of light using optical nonlinear effects, such as stimulated Raman scattering (SRS) and stimulated four-photon mixing (SFPM) in fibers, is an attractive technology for ultra-long distance, high speed optical signal transmission and optical processing [1]. To realize cw amplification, SRS seems to be preferable to SFPM, because the former process does not require phase matching, and hence enables utilization of long, low-loss fibers to reduce requisite pump power.
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