Liu Min, Yuan Hongtao, Shum Ping, Shao Cong, Han Haonan, Chu Lihua
Appl Opt. 2018 Aug 1;57(22):6383-6387. doi: 10.1364/AO.57.006383.
A novel photonic crystal fiber (PCF) with an elliptical tellurite core is proposed to realize high birefringence and high nonlinearity simultaneously as well as low confinement loss at the wavelength of 1.55 μm. The guiding properties, such as the birefringence, the nonlinearity, and the confinement loss, have been investigated by using the full vectorial finite element method. The results show that the birefringence and the nonlinear coefficient can be up to 7.57×10 and 188.39 W Km, respectively, and the confinement loss can be only 10 dB/m. The proposed PCF can find potential applications in optical fiber sensing, polarization-maintaining transmission, and super-continuum generation.
提出了一种具有椭圆形碲酸盐纤芯的新型光子晶体光纤（PCF），以在1.55μm波长处同时实现高双折射和高非线性以及低限制损耗。利用全矢量有限元方法研究了双折射、非线性和限制损耗等导波特性。结果表明，双折射和非线性系数分别可达7.57×10和188.39W·Km，限制损耗仅为10dB/m。所提出的光子晶体光纤在光纤传感、保偏传输和超连续谱产生方面具有潜在应用。
