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首页> 外文期刊>Optical engineering >Photonic triangular waveforms generation based on nonlinear polarization rotation using a highly nonlinear fiber
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Photonic triangular waveforms generation based on nonlinear polarization rotation using a highly nonlinear fiber

机译：基于高度非线性光纤的基于非线性偏振旋转的光子三角波形生成

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摘要

We propose a photonic approach to generate triangular waveforms based on nonlinear polarization rotation (NPR) effect in a highly nonlinear fiber. A continuous wave probe light is polarization rotated by an intensity-modulated control light through the NPR effect. By tuning the cascaded polarization controller, the undesired second-order harmonic is well suppressed after photodetec-tion. A 90-deg hybrid coupler is used to compensate the phase mismatch between the fundamental and third-order harmonic components, so that triangular waveforms are generated successfully. The proposed approach is theoretically analyzed and experimentally verified. Triangular waveforms at repetition rates of 3, 4, and 5 GHz with full-duty cycle are experimentally generated.
机译：我们提出了一种光子学方法，可基于高度非线性光纤中的非线性偏振旋转（NPR）效应生成三角波。连续波探测光通过NPR效应被强度调制的控制光偏振旋转。通过调整级联偏振控制器，可以在光电检测之后很好地抑制不希望的二阶谐波。 90度混合耦合器用于补偿基波和三阶谐波分量之间的相位失配，从而成功生成三角波。从理论上分析和实验验证了该方法的有效性。实验产生了具有3、4和5 GHz重复频率的三角波形，具有完整的占空比。

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