title: Gain improvement by internal laser cavity in Tm(3+)Yb(3+)-co-doped tellurite fiber amplifier pumped by 980-nm laser.
abstract: S-band Tm(3+)/Yb(3+) co-doped tellurite fiber amplifier pumped by a 980 nm laser diode is proposed and modeled taking into consideration of the energy transfer process from Yb(3+) to Tm(3+) and the laser cavity inside a co-doped fiber amplifier. S-band spectral gains for the co-doped fiber amplifiers are investigated. The results show that considerable gain improvement can be achieved by constructing 1050nm laser cavity inside the amplifier.
authors.forename: Jun
authors.initials: J
authors.lastname: Chang
authors.forename: Qingpu
authors.initials: Q
authors.lastname: Wang
authors.forename: Gangding
authors.initials: G
authors.lastname: Peng
authors.forename: Xingyu
authors.initials: X
authors.lastname: Zhang
authors.forename: Zejin
authors.initials: Z
authors.lastname: Liu
authors.forename: Shuanghong
authors.initials: S
authors.lastname: Ding
authors.forename: Zhaojun
authors.initials: Z
authors.lastname: Liu
authors.forename: Sasa
authors.initials: S
authors.lastname: Zhang
authors.forename: Gongtang
authors.initials: G
authors.lastname: Wang