title: Switchable and tunable thulium-doped fiber laser incorporating a Sagnac loop mirror.
abstract: A thulium-doped fiber laser employing a Sagnac loop mirror made by a 145.5 cm polarization-maintaining fiber is demonstrated, which can operate with stable dual-wavelength lasing or tunable single-wavelength lasing around 1860 nm. Both stable dual-wavelength and tunable single-wavelength lasing are achieved by adjusting a polarization controller in the Sagnac loop mirror. The experimental results show that the output of the reported fiber laser with two different operation modes is rather stable at room temperature.
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Ma
authors.forename: Shujun
authors.initials: S
authors.lastname: Luo
authors.forename: Daru
authors.initials: D
authors.lastname: Chen