Efficient self-stimulated Raman scattering with simultaneously self-mode-locking in a diode-pumped Nd:GdVO_4 laser

2016 ◽  
Vol 55 (32) ◽  
pp. 9000 ◽  
Author(s):  
Zuohan Li ◽  
Jiying Peng ◽  
Jianquan Yao ◽  
Ming Han ◽  
Linghong Jiang
Author(s):  
Meng Wang ◽  
Le Liu ◽  
Zefeng Wang ◽  
Xiaoming Xi ◽  
Xiaojun Xu

The average power of diode-pumped fiber lasers has been developed deeply into the kW regime in the past years. However, stimulated Raman scattering (SRS) is still a major factor limiting the further power scaling. Here, we have demonstrated the mitigation of SRS in kilowatt-level diode-pumped fiber amplifiers using a chirped and tilted fiber Bragg grating (CTFBG) for the first time. The CTFBG is designed and inscribed in large-mode-area (LMA) fibers, matching with the operating wavelength of the fiber amplifier. With the CTFBG inserted between the seed laser and the amplifier stage, an SRS suppression ratio of ${\sim}10~\text{dB}$ is achieved in spectrum at the maximum output laser power of 2.35 kW, and there is no reduction in laser slope efficiency and degradation in beam quality. This work proves the feasibility and practicability of CTFBGs for SRS suppression in high-power fiber lasers, which is very useful for the further power scaling.


Author(s):  
Tasoltan T. Basiev ◽  
Peter G. Zverev ◽  
Alexander Ya. Karasik ◽  
Sergey V. Vassiliev ◽  
Alexander A. Sobol ◽  
...  

1989 ◽  
Vol 19 (5) ◽  
pp. 660-663
Author(s):  
Pavel A Apanasevich ◽  
R G Zaporozhchenko ◽  
V A Orlovich ◽  
O V Chekhlov ◽  
G G Kot

2007 ◽  
Vol 15 (13) ◽  
pp. 8170 ◽  
Author(s):  
David J. Spence ◽  
Richard P. Mildren

1989 ◽  
Vol 19 (5) ◽  
pp. 655-659 ◽  
Author(s):  
Pavel A Apanasevich ◽  
R G Zaporozhchenko ◽  
V A Orlovich ◽  
G G Kot ◽  
O V Chekhlov

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