Abstract
We report over 2 W of single spatial-mode output power at from an 8-cm-long, large-core phosphate fiber laser. The fiber has a numerical aperture of and a -wide core, heavily doped with 1% and 8% . The laser utilizes a scalable evanescent-field-based pumping scheme and can be pumped by as many as eight individual multimode pigtailed diode laser sources at a wavelength of 975 nm. Nearly diffraction-limited laser output with a beam quality factor is achieved by use of a simple intracavity all-fiber spatial-mode filter. Both spectrally broadband and narrowband operation of the laser are demonstrated.
© 2005 Optical Society of America
Full Article | PDF ArticleMore Like This
Pavel Polynkin, Alexander Polynkin, Masud Mansuripur, Jerome Moloney, and N. Peyghambarian
Opt. Lett. 30(20) 2745-2747 (2005)
Alexander Polynkin, Pavel Polynkin, Masud Mansuripur, and N. Peyghambarian
Opt. Express 13(8) 3179-3184 (2005)
V. I. Karpov, E. M. Dianov, V. M. Paramonov, O. I. Medvedkov, M. M. Bubnov, S. L. Semyonov, S. A. Vasiliev, V. N. Protopopov, O. N. Egorova, V. F. Hopin, A. N. Guryanov, M. P. Bachynski, and W. R. L. Clements
Opt. Lett. 24(13) 887-889 (1999)