Title :
Beam cleanup of 20kW peak power laser pulses by SBS in 105µm large core diameter fiber with high beam quality (M2≈1.5)
Author :
Zhu, C.Y. ; Zhang, J.H. ; Yuan, Y.B. ; Ba, D.X. ; YAN, JIU DUN ; Gao, Q.L. ; Lu, Z.W.
Author_Institution :
Harbin Inst. of Technol., Harbin, China
Abstract :
Stimulated Brillouin Scattering in multimode fiber leads to the event of beam cleanup, which has attractive potential applications in improving the beam quality of multimode fiber laser with large core diameter and high peak power. We report the experimental setup and result that using Stimulated Brillouin Scattering in 105μm core diameter GI fiber to achieve beam cleanup when the 20kW peak power pulsed pump is provided, and getting a high-quality output with M2≈1.5.
Keywords :
fibre lasers; gradient index optics; laser beams; optical pumping; stimulated Brillouin scattering; GI fiber; SBS; beam cleanup; high beam quality; large core diameter fiber; laser pulses; multimode fiber laser; power 20 kW; pulsed pump power; size 105 mum; stimulated Brillouin scattering; Fiber lasers; Laser beams; Laser excitation; Laser modes; Optical fiber amplifiers; Pump lasers; Scattering; 105µm GI multimode fiber; SBS; beam cleanup;
Conference_Titel :
Optoelectronics and Microelectronics (ICOM), 2013 International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-1214-8
DOI :
10.1109/ICoOM.2013.6626541
