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Characterization of photonic bandgap fiber for high-power, narrow-linewidth optical transport

机译:用于高功率,窄线宽光传输的光子带隙光纤的特性

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An investigation of the use of hollow-core photonic bandgap (PBG) fiber to transport high-power narrow-linewidth light is performed. In conventional fiber the main limitation in this case is stimulated Brillouin scattering (SBS) but in PBG fiber the overlap between the optical intensity and the silica that hosts the acoustic phonons is reduced. In this paper we show this should increase the SBS threshold to the multi-kW level even when including the non-linear interaction with the air in the core. A full model and experimental measurement of the SBS spectra is presented, including back-scatter into other optical modes besides the fundamental, and some of the issues of coupling high power into hollow-core fibers are discussed.
机译:进行了使用空心光子带隙(PBG)光纤传输高功率窄线宽光的研究。在常规光纤中,这种情况下的主要限制是受激布里渊散射(SBS),但在PBG光纤中,光强度与承载声子的二氧化硅之间的重叠减少了。在本文中,我们表明即使在与核心中的空气发生非线性相互作用的情况下,这也应将SBS阈值提高到几千瓦。给出了SBS光谱的完整模型和实验测量结果,包括除了基本面之外的反向散射到其他光学模式,并讨论了将高功率耦合到空心光纤中的一些问题。

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