The Design And Experimental Study Of Raman Fiber Laser

As the third generation laser, fiber laser have many attractive specialities comparing with conventional laser. It can be used in the 13XXnm/14XXnm band where high power laser is urgently needed, however the output power of current laser diode is not high enough. Raman Fiber Amplifier (RFA) is a kind of fiber amplifier, which has been widely investigated in recent years. It uses high power 14XXnm fiber lasers as pump sources, doing amplification by one of the nonlinear effect in the transmission fiber-the stimulated raman scattering (SRS). This dissertation analyzes the principle of RFL and optimizes the output power. The details show as following:Building a SMF-pigtailed Diode Pump Solid-State Laser (DPSSL) operating at 1342nm, used as the pump source of the Raman Fiber Amplifier (RFA).Analyzing the FRL's model in detail, doing simulation with four-order Runge-Kutta arithmetic.Doing optimization design of Raman Fiber Laser (RFL) by comparing different reflectivities of Fiber Bragg Gratings(FBGs) and using backward pump.