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。