利用光纤放大器的纵向压缩梯度提高受激布里渊散射阈值功率

IF 1.8 4区 物理与天体物理 Q3 OPTICS
Anasthase Liméry, François Gustave, Laurent Lombard, Anne Durécu, Julien Le Gouët
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引用次数: 0

摘要

我们提出并演示了一种分析方法,利用纵向压缩应变梯度来提高光纤中受激布里渊散射(SBS)的阈值功率。在无源和放大光纤的一般情况下,考虑光纤的应变和光功率分布,导出了后向散射Stokes波的功率谱密度解析表达式。我们的方法提供了SBS增益谱的准确预测,我们通过应用压缩梯度前后SBS Stokes谱的测量和计算之间的定量比较来说明这一点。实验结果表明,无源光纤的SBS阈值功率提高了约3倍,放大光纤的阈值功率提高了2倍。在无源光纤的情况下,我们计算的增强与实验结果完全一致。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Raising the stimulated Brillouin scattering threshold power by longitudinal compression gradient in a fiber amplifier
We propose and demonstrate an analysis of our approach to enhance the threshold power of stimulated Brillouin scattering (SBS) in optical fibers, using a longitudinal compressive strain gradient. We derive analytical expressions for the power spectral density of the backscattered Stokes wave in the general case of passive and amplifying optical fibers, by considering the strain and optical power distributions. Our method provides an accurate prediction of the SBS gain spectrum, which we illustrate with a quantitative comparison between measurements and calculations of the SBS Stokes spectra, before and after applying the compression gradient. Our experimental results demonstrate the successful enhancement of the SBS threshold power by a factor of about three for the passive fiber and two for the amplifying fiber. The enhancement that we manage to calculate in the case of the passive fiber is in perfect agreement with the experimental results.
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来源期刊
CiteScore
4.00
自引率
5.30%
发文量
374
审稿时长
2.1 months
期刊介绍: The Journal of the Optical Society of America B (JOSA B) is a general optics research journal that complements JOSA A. It emphasizes scientific research on the fundamentals of the interaction of light with matter such as quantum optics, nonlinear optics, and laser physics. Topics include: Advanced Instrumentation and Measurements Fiber Optics and Fiber Lasers Lasers and Other Light Sources from THz to XUV Light-Induced Phenomena Nonlinear and High Field Optics Optical Materials Optics Modes and Structured Light Optomechanics Metamaterials Nanomaterials Photonics and Semiconductor Optics Physical Optics Plasmonics Quantum Optics and Entanglement Quantum Key Distribution Spectroscopy and Atomic or Molecular Optics Superresolution and Advanced Imaging Surface Optics Ultrafast Optical Phenomena Wave Guiding and Optical Confinement JOSA B considers original research articles, feature issue contributions, invited reviews and tutorials, and comments on published articles.
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