Complete elimination of self-pulsations in dual-clad ytterbium-doped fiber lasers at all pumping levels.
We have demonstrated suppression and elimination of self-pulsing in a watt-level, dual-clad, ytterbium-doped fiber laser. The addition of a long section of passive fiber in the laser cavity makes the gain recovery faster than the self-pulsation dynamics, allowing only stable cw lasing. This scheme provides a simple and practical method for eliminating self-pulsations in fiber lasers at all pumping levels.
Guan
W
W
Laboratory for Laser Energetics and the Institute of Optics, University of Rochester, Rochester, NY 14623-1299, USA. wgua@lle.rochester.edu
Marciante
J R
JR