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Very-large-mode-area photonic bandgap Bragg fiber polarizing in a wide spectral range

机译:在宽光谱范围内偏振的超大模态光子带隙布拉格光纤

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摘要

A design of a polarizing all-glass Bragg fiber with a microstructure core has been proposed for the first time. This design provides suppression of high-order modes and of one of the polarization states of the fundamental mode. The polarizing fiber was fabricated by a new, simple method based on a combination of the modified chemical vapor deposition (MCVD) process and the rod-in-tube technique. The mode field area has been found to be about 870 (mu)m~(2) near lambda velence 1064 nm. The polarization extinction ratio better than 13 dB has been observed over a 33percent wavelength range (from 1 to 1.4 (mu)m) after propagation in a 1.7 m fiber piece bent to a radius of 70 cm.
机译:首次提出了具有微结构纤芯的偏振全玻璃布拉格光纤的设计。这种设计抑制了高阶模和基本模的偏振态之一。偏振纤维是通过一种新的简单方法制造的,该方法基于改进的化学气相沉积(MCVD)工艺和管中棒技术的结合。已经发现,模式场面积在λ速度1064nm附近约为870μm〜(2)。在弯曲成70cm半径的1.7m光纤中传播之后,在33%的波长范围(从1到1.4μm)中观察到了优于13 dB的偏振消光比。

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