波导中宽带多束拉曼组束的理论分析研究

Theoretical Analysis on Broad-band Multi-beam Raman Combining with a Waveguide

采用宽带受激拉曼散射的量子理论，提出“点相关原理”，详细分析了光波导改善宽带多光束拉曼组束效率和光束质量的机制，从理论上分析了波导参数和光束的初始参数对组束效率和性能的影响，并利用最新拉曼组束结果给予了点相关原理的正确性讨论。认为“点相关原理”能够更好地解释波导组束的内在机制．

Stuning from the conclusions of the quantum theory of broadband StimulatedRarnan Forward Scattering(SRFS),this poper presents the principle of point correlation,by which the mechanism of improving the performance of broad-band Raman hamcombining with wave-guide is shown, and analyses the influence of the initial opticalparameters of pump beams and wave-guide on the efficiency of the beam-combining in usualRaman beam-combining scheme.After the analysis, a theoretical arrangement scheme ofbeam-combining is presented.Finally a discussion is given about the correctness of ourconclusions from the latest Raman beam-combining results. It is believed that this principleCan give a better explanation to the process of born-combining with wave-guide.