文章摘要
引用本文:李晓倩,高寿飞,汪滢莹,王璞.空芯光子晶体光纤熔接技术研究[J].导航定位与授时,2017,(6):102-106 本文二维码信息
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空芯光子晶体光纤熔接技术研究
Fusion Splice Technique of Hollow Core Photonic Crystal Fiber
  
DOI:
中文关键词:  光子晶体光纤  空芯光纤  光纤陀螺  熔接损耗  模场匹配
English Keywords:Photonic crystal fibers  Hollow-core fiber  Fiber optical gyro  Splice loss  Mode field match
基金项目:国家自然科学基金(61377098)
作者单位
李晓倩 北京工业大学 激光工程研究院北京 100124 
高寿飞 北京工业大学 激光工程研究院北京 100124 
汪滢莹 北京工业大学 激光工程研究院北京 100124 
王璞 北京工业大学 激光工程研究院北京 100124 
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中文摘要:
      空芯光子晶体光纤(HC-PCF)因其利用纤芯的空气导光而具有高损伤阈值、低损耗、低色散、低非线性等优点。此外,HC-PCF纤芯中空气的折射率温度系数、Verdet系数、Kerr系数远小于石英,在光纤陀螺中有独特的优势。但是在向实际应用迈进的过程中,必须要解决HC PCF与普通单模光纤以及自身简便、低损耗的熔接问题。基于热致扩芯技术和过渡光纤两种模场匹配方法,研究了HC-PCF和普通单模光纤之间的熔接问题,将两者的熔接损耗由直接熔接的1.4dB降至0.73dB。此外,研究了HC-PCF与其自身的熔接,通过两步放电熔接法,得到高强度低损耗的熔点,熔接损耗为0.52dB。
English Summary:
      In a hollow core photonic crystal fiber(HC-PCF), light is guided in the hollow air core with the merits of low transmission loss, low dispersion, low nonlinearity and high damage threshold The thermal coefficients of refractive index, Verdetconstant and Kerrconstant of the air core are much smaller than those of the sillica, making HC-PCF a promising candidate for fiber optical gyro. However, when marching towards practical applications,the issue of fusion splicing a HC-PCF with a single mode fiber, and with HC-PCF itself must be solved properly. In this paper, a low-loss fusion splice between a HC-PCF and a conventional single mode fiber is achieved by introduction of an intermediate fiber and thermal expansion core technique. Compared to the direct splicing technique, which yields a splice loss of 1.4dB, the overall insertion loss using the intermediate fiber technique has a loss of only 0.73dB. What's more, the self-splice technique of HC-PCF is also presented. Through two steps of arc-splice,the splice strength of HC-PCF to itself is guaranteed and the splice loss is reduced to 0.52dB.
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