Analysis of stimulated Brillouin scattering in multi-mode fiber by numerical solution.
Stimulated Brillouin scattering in optical fibers is described by a theoretical model and numerical analysis. The results showed that, for an optical fiber pumped by a laser beam with ns-order-pulse width and kW-order peak-power, SBS reflectivity tends to saturate when the fiber length exceeds a limit, named "effective fiber length". Using small core-diameter and long enough fiber, the SBS reflectivity level could be raised but is limited by optical damage of the entrance surface of the fiber. Therefore, just a small dynamic range can be obtained.
Zhou
Tao
T
The State Key Lab of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China.
Chen
Jun
J
D003198:Computer Simulation; D004735:Energy Transfer; D019544:Equipment Failure Analysis / Q000379:methods; D005240:Feasibility Studies; D005336:Fiber Optic Technology / Q000295:instrumentation* / Q000379:methods*; D007834:Lasers; D008962:Models, Theoretical; D055100:Optical Fibers; D012542:Scattering, Radiation