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。

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.

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利用耦合模理论分析了在双锥光纤耦合区中声光的相互作用，讨论了在不同耦合区半径下扰动周期与声波频率的关系。

The acoustooptic interaction in biconical optical fiber was analyzed based on coupled mode theory, and the relationship between perturbation period and flexural wave frequency was discussed.

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《艺界人生》是一场充满奇幻色彩的声光大秀，非常适合全家人一起观看。

Overflowing with colour, amusement and amazement, Saltimbanco is a fun show for the whole family to enjoy.

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