Polarization evolution in single-ring antiresonant hollow-core fibers

Jayakumar Nikhil; Sollapur Rudrakant; Hoffmann Andreas; Grigorova Teodora; Hartung Alexander; Schwuchow Anka; Bierlich Joerg; Kobelke Jens; Schmidt Markus A.; Spielmann Christian

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Polarization evolution in single-ring antiresonant hollow-core fibers

机译：单环反谐振空心纤维中的极化演化

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Understanding polarization in waveguides is of fundamental importance for any photonic device and is particularly relevant within the scope of fiber optics. Here, we investigate the dependence of the geometry-induced polarization behavior of single-ring antiresonant hollow-core fibers on various parameters from the experimental perspective, showing that structural deviations from an ideal polygonal shape impose birefringence and polarization-dependent loss, confirmed by a toy model. The minimal output ellipticity was found at the wavelength of lowest loss near the center of the transmission band, whereas birefringence substantially increases toward the resonances. The analysis that qualitatively also applies to other kinds of hollow-core fibers showed that maximizing the amount of linearly polarized light at the fiber output demands both operating at the wavelength of lowest loss, as well as carefully choosing the relative orientation of input polarization. This should correspond to the situation in which the difference of the core extent along the two corresponding orthogonal polarization directions is minimal. Due to their practical relevance, we expect our findings to be very important in fields such as nonlinear photonics or metrology. (C) 2018 Optical Society of America

机译：在波导中的理解极化对于任何光子器件具有基本的重要性，并且在光纤范围内特别相关。在这里，我们研究了单环反谐振中空纤维纤维的几何诱导的偏振行为从实验透视中的各种参数上的依赖性，示出了由理想的多边形形状的结构偏差施加双折射和偏振依赖性损失，由a确认玩具模型。在透射带的中心附近的最低损耗的波长处发现最小的输出椭圆度，而双折射基本上增加朝向谐振。定性也适用于其他类型的中空芯光纤的分析表明，在最低损耗的波长下，最大化光纤输出处的线性偏振光的量，以及仔细选择输入极化的相对取向。这应该对应于沿着两个相应的正交偏振方向的核心程度的差异最小的情况。由于他们的实际相关性，我们希望我们的研究结果在非线性光子学或计量等领域非常重要。（c）2018年光学学会

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来源
《Applied optics》 |2018年第29期|共7页
作者
Jayakumar Nikhil; Sollapur Rudrakant; Hoffmann Andreas; Grigorova Teodora; Hartung Alexander; Schwuchow Anka; Bierlich Joerg; Kobelke Jens; Schmidt Markus A.; Spielmann Christian;
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Inst Opt &

Quantum Elect Max Wien Pl 1 D-07743 Jena Germany;

Inst Opt &

Quantum Elect Max Wien Pl 1 D-07743 Jena Germany;

Inst Opt &

Quantum Elect Max Wien Pl 1 D-07743 Jena Germany;

Inst Opt &

Quantum Elect Max Wien Pl 1 D-07743 Jena Germany;

Leibniz Inst Photon Technol Albert Einstein Str 9 D-07743 Jena Germany;

Leibniz Inst Photon Technol Albert Einstein Str 9 D-07743 Jena Germany;

Leibniz Inst Photon Technol Albert Einstein Str 9 D-07743 Jena Germany;

Leibniz Inst Photon Technol Albert Einstein Str 9 D-07743 Jena Germany;

Leibniz Inst Photon Technol Albert Einstein Str 9 D-07743 Jena Germany;

Inst Opt &

Quantum Elect Max Wien Pl 1 D-07743 Jena Germany;

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Polarization evolution in single-ring antiresonant hollow-core fibers

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