DocumentCode :
3699733
Title :
Q-switched ring-cavity erbium-doped fiber laser based on tungsten disulfide (WS2)
Author :
Bohua Chen; Hao Wang;Xiaoyan Zhang;Jun Wang;Kan Wu;Jianping Chen
Author_Institution :
State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, 200240, China
fYear :
2015
fDate :
6/1/2015 12:00:00 AM
Firstpage :
1
Lastpage :
3
Abstract :
Applying liquid-phase exfoliation method, we prepare WS2 dispersions with ethanol and fabricate WS2-PVA polymer composite film. As a saturable absorber, the WS2-PVA film is used to Q-switch a ring-cavity erbium-doped fiber laser. The Q-switched fiber laser can generate stable pulses when the pump power varies from 400 mW to 720 mW. The repetition rate and pulse duration can be tuned with pump power from 47 kHz to 77 kHz and from 6.7 μs to 4.1 μs, respectively. The radio frequency (RF) spectrum with a 58 dB extinction ratio at fundamental frequency also shows a good stability of Q-switching operation. Our work provides an easy and feasible method to fabricate WS2-PVA polymer composite film and demonstrates the possibility for WS2 to be a promising saturable absorber for Q-switched laser or even mode-locked laser.
Keywords :
"Ultrafast optics","Laser excitation","Polymers","Optical fiber dispersion","Optical fiber polarization"
Publisher :
ieee
Conference_Titel :
Opto-Electronics and Communications Conference (OECC), 2015
Electronic_ISBN :
2166-8892
Type :
conf
DOI :
10.1109/OECC.2015.7340169
Filename :
7340169
Link To Document :
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