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首页> 外文期刊>Optical engineering >Development of a method to overcome the power threshold during supercontinuum generation based on an Yb-doped photonic crystal fiber
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Development of a method to overcome the power threshold during supercontinuum generation based on an Yb-doped photonic crystal fiber

机译:基于掺b光子晶体光纤的超连续谱产生中克服功率阈值的方法的开发

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摘要

Optical coherence tomography benefits from the high brightness and bandwidth, as well as the spatial coherence of supercontinuum (SC) sources. The increase of spectral power density (SPD) over conventional light sources leads to shorter measuring times and higher resolutions. For some applications, only a portion of the broad spectral range can be used. Therefore, an increase of the SPD in specific limited spectral regions would provide a clear advantage over spectral filtering. This study describes a method to increase the SPD of SC sources by amplifying the excitation wavelength inside of a nonlinear photonic crystal fiber (PCF). An ytterbium-doped PCF was manufactured by a nanopowder process and used in a fiber amplifier setup as the nonlinear fiber medium. The performance of the fiber was compared with a conventional PCF that possesses comparable parameters. Finally, the system as a whole was characterized in reference to common solid-state laser-based photonic SC light sources. An order-of-magnitude improvement of the power density was observed between the wavelengths from 1100 to 1350 nm.
机译:光学相干断层扫描得益于高亮度和高带宽以及超连续谱(SC)源的空间相干性。与传统光源相比,光谱功率密度(SPD)的增加导致测量时间缩短和分辨率提高。对于某些应用,只能使用宽光谱范围的一部分。因此,在特定的有限频谱区域中SPD的增加将提供明显优于频谱过滤的优势。这项研究描述了一种通过放大非线性光子晶体光纤(PCF)内部的激发波长来增加SC源SPD的方法。 a掺杂的PCF通过纳米粉末工艺制造,并在光纤放大器中用作非线性光纤介质。将该纤维的性能与具有可比参数的常规PCF进行了比较。最终,该系统作为一个整体参照了常见的基于固态激光的光子SC光源进行了表征。在从1100到1350nm的波长之间观察到功率密度的数量级改善。

著录项

  • 来源
    《Optical engineering》 |2018年第2期|021207.1-021207.5|共5页
  • 作者单位

    Fraunhofer-Institut fuer Werkstoff-und Strahltechnik IWS, Dresden, Germany,University of Applied Sciences Zwickau, Institute of Leupold-Institute for Applied Natural Sciences/Optical Technologies, Zwickau, Germany,Technische Universitaet Dresden, Institute of Manufacturing Technology, Dresden, Gemany;

    Fraunhofer-Institut fuer Werkstoff-und Strahltechnik IWS, Dresden, Germany,Technische Universitaet Dresden, Institute of Manufacturing Technology, Dresden, Gemany,Technische Universitaet Dresden, Medizinische Fakultaet Carl Gustav Carus, Dresden, Gemany;

    University of Applied Sciences Zwickau, Institute of Leupold-Institute for Applied Natural Sciences/Optical Technologies, Zwickau, Germany;

    Fraunhofer-Institut fuer Werkstoff-und Strahltechnik IWS, Dresden, Germany,Technische Universitaet Dresden, Institute of Manufacturing Technology, Dresden, Gemany;

    Fraunhofer-Institut fuer Werkstoff-und Strahltechnik IWS, Dresden, Germany,University of Applied Sciences Zwickau, Institute of Leupold-Institute for Applied Natural Sciences/Optical Technologies, Zwickau, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    supercontinuum; ytterbium-doped photonic crystal fiber; light source; nanosecond pulses;

    机译:超连续谱掺photo光子晶体光纤;光源;纳秒脉冲;

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