345-mW 1836-nm single-frequency DFB fiber laser MOPA

We demonstrate an in-band-pumped continuous-wave single-frequency distributed-feedback (DFB) fiber laser emitting at a wavelength of 1836 nm with an output power of /spl sim/5 mW. The laser is subsequently amplified to 345 mW using a master-oscillator power amplifier configuration. To the best of the authors' knowledge, this is the first report of a Tm-co-doped single-frequency DFB fiber laser that is in-band pumped at 1565 nm. The laser is confirmed to operate in a single mode, using a scanning Fabry-Pe/spl acute/rot interferometer.

[1]  Michalis N. Zervas,et al.  Robust high power (>20 mW) all-fibre DFB lasers with unidirectional and truly single polarisation outputs , 1999 .

[2]  Anne C. Tropper,et al.  Continuous-wave oscillation of a monomode ytterbium-doped fibre laser , 1988 .

[3]  William W. Morey,et al.  Nd3+ fibre laser utilising intra-core Bragg reflectors , 1990 .

[4]  S. Agger,et al.  Single-frequency thulium-doped distributed-feedback fiber laser. , 2004, Optics letters.

[5]  Y. Miyajima,et al.  1.9 mu m Tm-doped silica fibre laser pumped at 1.57 mu m , 1994 .

[6]  G. Hull-Allen,et al.  60 mW 1.5 /spl mu/m single-frequency low-noise fiber laser MOPA , 1994, IEEE Photonics Technology Letters.

[7]  Terence A. King,et al.  High power 1.9 μm Tm3+-silica fibre laser pumped at 1.09 μm by a Yb3+-silica fibre laser , 2004 .

[8]  G. A. Ball,et al.  Design of a single-mode linear-cavity erbium fiber laser utilizing Bragg reflectors , 1992 .

[9]  Walter Margulis,et al.  10 cm Yb3+ DFB fibre laser with permanent phase shifted grating , 1995 .

[10]  Stuart D. Jackson,et al.  Theoretical modeling of Tm-doped silica fiber lasers , 1999 .

[11]  Y. Tsang,et al.  Broadband amplified spontaneous emission fibre source near 2 μm using resonant in-band pumping , 2005 .

[12]  M. Ibsen,et al.  83-W single-frequency narrow-linewidth MOPA using large-core erbium-ytterbium Co-doped fiber , 2004, IEEE Photonics Technology Letters.

[13]  M. Ibsen,et al.  Fiber-DFB laser array pumped with a single 1-W CW Yb-fiber laser , 2003, IEEE Photonics Technology Letters.

[14]  S. Jackson,et al.  Efficiency dependence on the Tm3+ and Al3+ concentrations for Tm3+-doped silica double-clad fiber lasers. , 2003, Applied optics.

[15]  J.J. Pan,et al.  166-mW single-frequency output power interactive fiber lasers with low noise , 1999, IEEE Photonics Technology Letters.