對新型寬帶碲基摻鉺光纖放大器(EDTFA)多信道問的增益演變關系進行了理論仿真。仿真結果表明：
EDTFA多信道問的增益存在著一個競爭過程，競爭的強弱取決于碲基摻鉺光纖內的能級粒子數分布；當上能級粒子數處于反轉分布態時，具有較大的發射截面與吸收截面差值的波長信道擁有相對較大的競爭優勢，可獲得相對較高的信號增益；當上能級粒子數處于未反轉分布態時，具有較大的發射截面與吸收截面比值的波長信道擁有相對較大的增益競爭優勢。

The slmu[ation analyses on gain relations among multi—channels of novel broad—band erbium—doped tellurite—based fibet amplifier(EDTFA)are presented theoretically．The simulation re．suits show that there is a gain competitive process am ong multi—channels which relied on the energy state popuhtion distribution of EDTFA．W hen the upper state population is reversed，the channel with greater difference of emission and absorption cross--section has bigger signal gain due to its competitive advan--tage．When the upper state population is not reversed ，the channel with greater ratio of emission and ab~rption cross-section has greater competitive advantage．