Acta Optica Sinica, Volume. 37, Issue 1, 106002(2017)
Fabrication of Chirped and Tilted Fiber Bragg Gratings and Investigation of Raman Filtering Effect
Stimulated Raman scattering (SRS) is one of the important factors which restrict the further improvement of fiber laser power. We propose that using chirped and tilted fiber Bragg gratings (CTFBGs) can suppress SRS. According to the design of optical fiber laser SRS signal of 1018 nm, a CTFBG of 1066 nm is fabricated. An experimental system is established to verify the filtering effect of Raman signal. Results show that the designed CTFBG can suppress the first-order SRS signal about 20 dB, and achieve a good effect. The research results have certain significance for suppressing SRS in high power fiber laser oscillator and amplifier with CTFBG, and for further improving the efficiency and output power of fiber lasers.
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Zhang Yujing, Wang Meng, Wang Zefeng, Cao Jianqiu, Xiao Hu. Fabrication of Chirped and Tilted Fiber Bragg Gratings and Investigation of Raman Filtering Effect[J]. Acta Optica Sinica, 2017, 37(1): 106002
Category: Fiber Optics and Optical Communications
Received: Jul. 25, 2016
Accepted: --
Published Online: Jan. 13, 2017
The Author Email: Yujing Zhang (15084929846@163.com)