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首页> 外文期刊>Optical engineering >Low-loss and single-mode tapered hollow-core waveguides optically coupled with interband and quantum cascade lasers
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Low-loss and single-mode tapered hollow-core waveguides optically coupled with interband and quantum cascade lasers

机译：与带间和量子级联激光器光学耦合的低损耗单模锥形空心波导

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摘要

We report single-mode midinfrared laser beam delivery through a 50-cm-long tapered hollow-core waveguide (HCW) having bore diameter linearly increasing from 200 to 260 μm. We performed theoretical calculations to identify the best HCW-laser coupling conditions in terms of optical losses and single-mode fiber output. To validate our modeling, we coupled the HCW with an interband cascade laser and four quantum cascade lasers with their emission wavelengths spanning 3.5 to 7.8 μm, using focusing lenses with different focal lengths. With the best coupling conditions, we achieved single-mode output in the investigated 3.5 to 7.8 μm spectral range, with minimum transmission losses of 1.27 dB at 6.2 μm.
机译：我们报告单模中红外激光束通过50厘米长的锥形空心波导（HCW）传递，其孔径从200到260μm线性增加。我们进行了理论计算，以根据光损耗和单模光纤输出确定最佳的HCW-激光耦合条件。为了验证我们的建模，我们使用了不同焦距的聚焦透镜，将HCW与带间级联激光器和四个量子级联激光器耦合，它们的发射波长在3.5至7.8μm之间。在最佳耦合条件下，我们在研究的3.5至7.8μm光谱范围内实现了单模输出，在6.2μm处的最小传输损耗为1.27 dB。

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  • 来源
    《Optical engineering》 |2018年第1期|011004.1-011004.7|共7页
  • 作者

    Marilena Giglio; Pietro Patimisco; Angelo Sampaolo; Jason M. Kriesel; Frank K. Tittel; Vincenzo Spagnolo;

  • 作者单位

    University and Politecnico of Bari, PolySense Lab-Dipartimento Interateneo di Fisica, Bari, Italy,Rice University, Department of Electrical and Computer Engineering, Houston, Texas, United States;

    University and Politecnico of Bari, PolySense Lab-Dipartimento Interateneo di Fisica, Bari, Italy,Rice University, Department of Electrical and Computer Engineering, Houston, Texas, United States;

    University and Politecnico of Bari, PolySense Lab-Dipartimento Interateneo di Fisica, Bari, Italy,Rice University, Department of Electrical and Computer Engineering, Houston, Texas, United States;

    Opto-Knowledge Systems, Inc. (OKSI), Torrance, California, United States;

    Rice University, Department of Electrical and Computer Engineering, Houston, Texas, United States;

    University and Politecnico of Bari, PolySense Lab-Dipartimento Interateneo di Fisica, Bari, Italy;

  • 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

    fiber; quantum cascade laser; interband cascade laser; single-mode delivery; optical coupling;

    机译：纤维;量子级联激光器带间级联激光器;单模交付;光耦合;

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