The suppress effect of TWM upon the incident beam fanning in large signal is presented and the effect of the beam fanning on the output of the signal are discussed theoretically.

通过数值求解揭示了在大信号下两波耦合对光扇开效应的抑制作用和在小信号下光束扇开损耗对两波耦合影响的规律。

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The light amplification mechanism of fanning noise in doped lithium niobate crystals was analyzed and the light amplification competition between the signal beam and the fanning noise was discussed.

分析了掺杂铌酸锂晶体的扇形噪声光的形成机制，讨论了信号光与扇形噪声光之间的光放大竞争问题。

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The decrease of the amplified light intensity after the steady-state is due to the decreases of the transient energy transfer with time and the energy dissipation caused by the beam fanning.

弱光放大达到准稳态之后的下降过程为瞬态能量转移的时间指数衰减过程与光散射引起的能量耗散的共同贡献。

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