Effects of different Raman pumping schemes on stimulated Brillouin scattering in a linear cavity.
Effects of different Raman pumping schemes on stimulated Brillouin scattering in a linear cavity.
复制标题
不同拉曼泵浦方案对线性腔中受激布里渊散射的影响。
DOI：
10.1364/ao.47.003088
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发表时间：
2008
期刊：
影响因子：
1.9
通讯作者：
H. Ahmad
中科院分区：
文献类型：
--
作者：
M. R. Shirazi;M. Biglary;S. Harun;K. Thambiratnam;H. Ahmad
研究了反向、正向和双向拉曼泵浦方案对受激布里渊散射（SBS）的影响。通过使用线性腔，我们利用每次通过25公里单模光纤（SMF）作为增益介质传输后的残余布里渊泵浦（BP）和拉曼泵浦（RP）功率。当1480 nm的RP功率固定为150 mW， BP波长为1580 nm时，正向、反向和双向拉曼泵浦方案的SBS阈值功率分别降低2.5、1.75和2.75 dB。令人惊讶的是，我们发现SBS阈值的降低只强烈地依赖于拉曼增益，而与拉曼泵浦方案无关。此外，拉曼放大对SBS的影响在SBS阈值处更为有效，特别是在双向和正向方案中。
The effects of backward, forward, and bidirectional Raman pumping schemes on stimulated Brillouin scattering (SBS) is investigated in this study. By using a linear cavity, we utilize residual Brillouin pump (BP) and Raman pump (RP) power after each transmission through a 25 km single-mode fiber (SMF) used as a gain medium. The SBS threshold power is reduced in the forward, backward, and bidirectional Raman pumping schemes by 2.5, 1.75, and 2.75 dB, respectively when the 1480 nm RP power is fixed at 150 mW and the BP wavelength is 1580 nm. Surprisingly, it is revealed that the SBS threshold reduction depends strongly and solely on Raman gain and it is independent of the Raman pumping schemes. In addition, the effect of Raman amplification on SBS is more effective at the SBS threshold, especially in the bidirectional and forward schemes.