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首页> 外文期刊>Optics Letters >1-mu m-wavelength ytterbium-doped fiber laser based on the third harmonic reflection in secondary-type-In Bragg gratings
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1-mu m-wavelength ytterbium-doped fiber laser based on the third harmonic reflection in secondary-type-In Bragg gratings

机译：基于二次谐波In Bragg光栅中三次谐波反射的1μm波长掺fiber光纤激光器

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摘要

In this Letter, a 1-mu m-wavelength fiber laser is proposed through the use of the ytterbium-doped active fiber and the third harmonic Bragg reflectors. Benefiting from the ratio below 0.5 between the core diameter of the fiber and the Talbot length of the UV fringes, enabling the formation of the secondary-type-In grating, the reflector with reflectivity higher than 95% at two-thirds of the designing Bragg wavelength can be fabricated within 2 min. Inherited by the lower temperature and strain sensitivity of the third harmonic grating, the laser has good wavelength stability and could be used as a reliable laser resource. In addition, this Letter can also be expected to provide great flexibility in fiber laser wavelength design. (C) 2016 Optical Society of America
机译：在这封信中，通过使用掺active有源光纤和三次谐波布拉格反射镜，提出了一种1微米波长的光纤激光器。得益于光纤纤芯直径与UV条纹的Talbot长度之比低于0.5，从而能够形成次入In光栅，反射器在设计布拉格的三分之二时反射率高于95％波长可以在2分钟内完成。由于三次谐波光栅具有较低的温度和应变敏感性，因此该激光器具有良好的波长稳定性，可以用作可靠的激光器资源。另外，也可以预期该信函将在光纤激光器波长设计中提供极大的灵活性。 （C）2016美国眼镜学会

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