OSNR enhancement utilizing large effective area fiber in a multiwavelength Brillouin-Raman fiber laser
OSNR enhancement utilizing large effective area fiber in a multiwavelength Brillouin-Raman fiber laser
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DOI：
10.1002/lapl.201010110
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发表时间：
2011-02
影响因子：
1.7
通讯作者：
R. Sonee Shargh;M. H. Al-Mansoori;S. Anas;R. Sahbudin;M. Mahdi
中科院分区：
文献类型：
--
作者：
R. Sonee Shargh;M. H. Al-Mansoori;S. Anas;R. Sahbudin;M. Mahdi
提出了一种简单的具有瑞利散射的布里渊-拉曼多通道光纤激光器。布里渊散射和瑞利散射的结果作为虚镜工作。为了提高多通道布里渊-拉曼梳状光纤激光器的光信噪比，我们在一段色散补偿光纤的基础上增加了一段大有效面积光纤。我们能够产生一个平坦的梳状光纤激光器与37 nm的带宽从1539至1576 nm内置460斯托克斯线与0.08 nm的间距。此外，该布里渊-拉曼梳状光纤激光器对于整个带宽具有16.8dB的可接受的光信噪比值，具有优异的平坦度和在奇数和偶数信道之间约2.3dB的功率电平的低差异。
We propose a simple Brillouin-Raman multi-channel fiber laser with supportive Rayleigh scattering in a linear cavity without employing any feedback mirrors at the end of cavity. Brillouin and the consequences of Rayleigh scattering work as virtual mirrors. We employ a section of large effective area fiber in addition to a section of dispersion compensating fiber to enhance the optical signal-to-noise ratio of multi-channel Brillouin-Raman comb fiber laser. We able to produce a flat comb fiber laser with 37 nm bandwidth from 1539 to 1576 nm built-in 460 Stokes lines with 0.08 nm spacing. Furthermore, this Brillouin-Raman comb fiber laser has acceptable optical signal-to-noise ratio value of 16.8 dB for the entire bandwidth with excellent flatness and low discrepancies in power levels of about 2.3 dB between odd and even channels.