A novel all fiber cavity Yb^(3+)-doped double-clad fiber laser (DCFL) based on two double-clad fiber (DCF) Bragg grating is presented. The fiber Bragg gratings (FBGs) as the input and output mirrors have been formed in Yb^(3+)-doped DCF with the phase-mask method, and their reflectivities are 99% and 22%, respectively. When the input pump power is 417 mW, the maximum output power is 144 mW with linewidth <0.1 nm at the wavelength of 1.057 ?m, over 40-dB signal-to-noise ratio (SNR), and 50.8% slope efficiency.
© 2005 Chinese Optics Letters
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3510) Lasers and laser optics : Lasers, fiber
Lijun Li, Zhi Wang, Wande Fan, Shenggui Fu, Qiang Zhang, Chunshu Zhang, Shuzhong Yuan, and Xiaoyi Dong, "Yb3+-doped double-clad fiber laser with all fiber cavity," Chin. Opt. Lett. 2, 592-594 (2004)