保偏空芯带隙光子晶体光纤温度特性研究
发布时间：2018-11-21 18:41
【摘要】：提出了一种具有良好保偏(PM)特性的空芯带隙光子晶体光纤(PBF)结构,利用全矢量有限元方法(FEM)对光纤有效折射率、拍长及限制损耗特性受温度波动的影响进行了研究。研究结果表明,在1.55μm波长处,该PBF的双折射高达6.19×10-3,拍长不超过0.25 mm;PBF拍长对温度波动不敏感,拍长温度敏感系数低于2.86×10-8m/℃,比常规的熊猫保偏光纤低两个数量级;光纤损耗对温度波动较为敏感,两正交偏振态限制损耗会随温度提高而增大。这种具有极低拍长温度敏感系数的PM-PBF可以有效降低谐振式光纤陀螺(RFOG)中热致偏振不稳定带来的误差,在RFOG、光纤通讯、光纤传感等领域具有重要的应用价值。
[Abstract]:An empty band gap photonic crystal fiber (PBF) structure with good polarization-maintaining (PM) characteristics is proposed. The effective refractive index of the optical fiber is obtained by using the full-vector finite element method (FEM). The effects of temperature fluctuation on beat length and limiting loss characteristics are studied. The results show that the birefringence of the PBF is 6.19 脳 10 ~ (-3) and the beat length is not more than 0.25 mm; at the wavelength of 1.55 渭 m. PBF beat length is not sensitive to temperature fluctuation, and the temperature sensitivity coefficient is less than 2.86 脳 10-8m/ 鈩，
本文编号：2347940
[Abstract]:An empty band gap photonic crystal fiber (PBF) structure with good polarization-maintaining (PM) characteristics is proposed. The effective refractive index of the optical fiber is obtained by using the full-vector finite element method (FEM). The effects of temperature fluctuation on beat length and limiting loss characteristics are studied. The results show that the birefringence of the PBF is 6.19 脳 10 ~ (-3) and the beat length is not more than 0.25 mm; at the wavelength of 1.55 渭 m. PBF beat length is not sensitive to temperature fluctuation, and the temperature sensitivity coefficient is less than 2.86 脳 10-8m/ 鈩，
本文编号：2347940
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