Title :
Concentration effect of dispersed-graphene based saturable absorber on stabilizing and shortening mode-locked pulse
Author :
Huang, Shr-Hau ; Huang, Pi Ling ; Hsieh, Bi-Zen ; Kuo, Hsin-Hui ; Yeh, Chao-Yung ; Lin, Shau-Ching ; Lin, Jiang-Jen ; Cheng, Wood-Hi
Author_Institution :
Dept. of Photonics, Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan
Abstract :
We investigated the concentration effect of dispersed graphene in polymer films for being a saturable absorber (SA) to optimize the mode locking performance of the Erbium-doped fiber (EDFL) laser pulse. With the concentrations of 1.65 and 3.25 wt%, the mode-locked (ML) pulse is stabilized with the pulse duration of 543 and 443 fs, respectively. For a short pulse of 443 fs, the 3-dB spectral bandwidth and time-bandwidth product were 5.78 nm and 0.316, respectively.
Keywords :
erbium; fibre lasers; graphene; laser accessories; laser beams; laser mode locking; laser stability; optical films; optical polymers; optical saturable absorption; C; concentration effect; dispersed graphene based saturable absorber; fiber laser pulse; mode locked pulse shortening; mode locked pulse stabilization; polymer films; time 443 fs; Laser mode locking; Optical device fabrication; Optical fibers; Optical films; Optical pulses; Ultrafast optics;
Conference_Titel :
Wireless and Optical Communications Conference (WOCC), 2012 21st Annual
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4673-0940-0
DOI :
10.1109/WOCC.2012.6198179
