In-fiber linear polarizer based on UV-inscribed 45° tilted grating in polarization maintaining fiber.
In-fiber linear polarizer based on UV-inscribed 45° tilted grating in polarization maintaining fiber.
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DOI：
10.1364/ol.37.003819
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发表时间：
2012-09
期刊：
影响因子：
3.6
通讯作者：
Zhijun Yan;K. Zhou;Lin Zhang
中科院分区：
文献类型：
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作者：
Zhijun Yan;K. Zhou;Lin Zhang
本文报道了一种光纤内线性偏振器，它是在保偏光纤中沿着其主轴方向紫外写入一个45°倾斜光纤光栅（TFG）。由48 mm长的45° TFG实现的偏振消光比（PER）在1550 nm处达到46 dB，并且在50 nm波长范围内的总体PER>40 dB。这种基于45° TFG的偏振器与传统产品相比具有许多优点，包括低损耗、低成本、简单的制造工艺，并且不对光纤进行物理修改，从而提供高稳定性并且能够处理高功率。
We report an in-fiber linear polarizer structured by UV-inscribing a 45° tilted fiber grating (TFG) into polarization maintaining (PM) fiber along its principal axis. The polarization extinction ratio (PER) achieved by a 48 mm long 45° TFG has reached 46 dB at 1550 nm and the overall PER is >40 dB over a 50 nm wavelength range. Such 45° TFG based polarizers have many advantages over conventional products, including low loss, low cost, simple fabrication process, and no physical modification to the fiber, thus offering high stability and capable of handling high power.