Laser-driven self-exfoliation of graphene oxide layers on a fiber facet for Q switching of an Er-doped fiber laser at the longest wavelength

2020 ◽  
Vol 8 (8) ◽  
pp. 1324 ◽  
Author(s):  
Byungjoo Kim ◽  
Seongjin Hong ◽  
Jaedeok Park ◽  
Yongsoo Lee ◽  
Dong-il Yeom ◽  
...  
2021 ◽  
Vol 11 (1) ◽  
pp. 407
Author(s):  
Jinho Lee ◽  
Ju Han Lee

This study reports a Q-switching-based, 2058-nm holmium (Ho) fiber laser incorporating a saturable absorber (SA) based on graphene oxide (GO). The SA was prepared with a side-polished fiber, while GO particles were deposited onto the fiber-polished surface to realize an all-fiber SA. A continuous-wave thulium-doped all-fiber laser, which was configured with a master-oscillator power-amplifier (MOPA) structure, was constructed as a pumping source. By inserting the fabricated SA into an all-fiber ring resonator based on 1-m length of Ho-doped fiber, Q-switched pulses could readily be obtained at a wavelength of 2058 nm. The pulse width was observed to vary from 2.01 to 1.56 μs as the pump power was adjusted from ~759 to 1072 mW, while the repetition rate was tunable from 45.56 to 56.12 kHz. The maximum values of average optical power and pulse energy were measured as ~11.61 mW and 207.05 nJ, respectively, at a ~1072 mW pump power.


Laser Physics ◽  
2014 ◽  
Vol 24 (8) ◽  
pp. 085110 ◽  
Author(s):  
Mengmeng Tao ◽  
Xisheng Ye ◽  
Zhenbao Wang ◽  
Yan Yan ◽  
Gang Feng ◽  
...  

2014 ◽  
Author(s):  
Jakub Boguslawski ◽  
Jaroslaw Sotor ◽  
Grzegorz Sobon ◽  
Rafal Kozinski ◽  
Krzysztof Librant ◽  
...  

2021 ◽  
Vol 140 ◽  
pp. 106932
Author(s):  
Li-Yen Tsai ◽  
Zhen-Ying Li ◽  
Ja-Hon Lin ◽  
Yu-Feng Song ◽  
Han Zhang

2012 ◽  
Vol 101 (24) ◽  
pp. 241106 ◽  
Author(s):  
Grzegorz Sobon ◽  
Jaroslaw Sotor ◽  
Joanna Jagiello ◽  
Rafal Kozinski ◽  
Krzysztof Librant ◽  
...  

2015 ◽  
Vol 354 ◽  
pp. 209-212 ◽  
Author(s):  
Mengmeng Tao ◽  
Guobin Feng ◽  
Alexey Andrianov ◽  
Arkady Kim ◽  
Ting Yu ◽  
...  

2018 ◽  
Vol 35 (11) ◽  
pp. 114202 ◽  
Author(s):  
Lu Li ◽  
Rui-Dong Lv ◽  
Si-Cong Liu ◽  
Zhen-Dong Chen ◽  
Jiang Wang ◽  
...  

2020 ◽  
Vol 1 (2) ◽  
pp. 9-12
Author(s):  
M. Yasin, N. A. Aziz, S. W. Harun

Abstract – We demonstrate a Q-switched Erbium-doped fiber laser (EDFL) using a newly developed Graphene Oxide (GO) based saturable absorber (SA). The SA was fabricated by embedding a GO material, which was obtained through chemical oxidation of graphite into polyvinyl alcohol (PVA) film. A small piece of the film was sandwiched between two fiber ferrules via a fiber adapter and incorporated in an EDFL cavity for generating a stable Q-switching pulse train. The EDFL operates at 1560.5 nm with a pump power threshold of 16.88 mW while a pulse repetition rate was tunable from 32.45 to 81.7 kHz, and the smallest pulse-width of 5.67 μs. The Q-switching pulse shows no spectral modulation with a peak-to-pedestal ratio of 61.76 dB indicating the high stability of the laser. These results show that the GO has a great potential to be used for pulsed laser applications.Key words: graphene oxide, passive saturable absorber, Q-switching, EDFL, GO


Sign in / Sign up

Export Citation Format

Share Document