Title :
Mode depression phenomena of SBS in large core (>100µm diameter) fibers
Author :
Zhu, C.Y. ; Gao, Q.L. ; Lu, Z.W. ; Ba, D.X. ; Yu, T. ; Li, S.S.
Author_Institution :
Inst. of Opto-Electron., Harbin Inst. of Technol., Harbin, China
fDate :
July 28 2010-Aug. 1 2010
Abstract :
We experimentally investigate the Stimulated Brillouin Scattering (SBS) beam profile in very large core (105μm) fibers with nanosecond pulse. Both phase conjugation and mode depression effect in different conditions are achieved and studied. Beam shape of step-index (SI) fiber and graded-index (GI) fiber with same parameters are contrasted. And a mode clean up mechanism in GI fiber has been suggested.
Keywords :
gradient index optics; high-speed optical techniques; laser beams; laser modes; optical fibres; optical phase conjugation; stimulated Brillouin scattering; GI fiber; beam shape; graded-index fiber; mode depression; nanosecond pulse; phase conjugation; step-index fiber; stimulated Brillouin scattering beam profile; very large core fibers; Laser beams; Optical fiber communication; Optical fiber devices; Optical fiber testing; Optical fiber theory; Scattering; GI fiber; SBS; SI fiber; beam pattern; clean up;
Conference_Titel :
Laser Physics and Laser Technologies (RCSLPLT) and 2010 Academic Symposium on Optoelectronics Technology (ASOT), 2010 10th Russian-Chinese Symposium on
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-5511-9
DOI :
10.1109/RCSLPLT.2010.5615374
