Title :
Compact high-energy Q-switched cladding-pumped fiber laser with a tuning range over 40 nm
Author :
Renaud, C.C. ; Selvas-Aguilar, R.J. ; Nilsson, J. ; Turner, P.W. ; Grudinin, A.B.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., UK
Abstract :
We describe a compact Q-switched diode pumped double-clad ytterbium-doped fiber laser. The fiber laser was bidirectionally pumped by two laser diodes (2 W of output power each) via two side-injecting pump-couplers. We used a large multimode core of 15 μm diameter to increase the laser gain volume and thus to achieve higher pulse energy. Experimentally this laser produced pulses with energy up to 170 μJ with a peak power of 2 kW (at a low repetition rate of 500 Hz) and was tunable from 1060 to 1100 nm.
Keywords :
Q-switching; fibre lasers; laser tuning; optical fibre cladding; optical fibre couplers; optical pumping; ytterbium; 1060 to 1100 nm; 15 mum; 170 muJ; 2 W; 2 kW; bidirectionally pumped; compact Q-switched diode pumped double-clad ytterbium-doped fiber laser; high-energy Q-switched cladding-pumped fiber laser; higher pulse energy; large multimode core; laser gain volume; output power; peak power; repetition rate; side-injecting pump-couplers; tunable; tuning range; Diodes; Fiber lasers; Gas lasers; Laser excitation; Laser theory; Laser tuning; Optical fiber couplers; Optical fibers; Power lasers; Pump lasers;
Journal_Title :
Photonics Technology Letters, IEEE
