A novel ultra-broadband single polarization single mode photonic crystal fiber

作者：Jiang, Linghong^*; Zheng, Yi; Hou, Lantian; Zheng, Kai; Peng, Jiying; Zhao, Xingtao

来源：Optics Communications, 2017, 396: 8-14.

DOI：10.1016/j.optcom.2017.03.022

• Photonic crystal fiber
• Single polarization single mode
• Confinement loss
• Dispersion
• Wavelength splitter

The concept of employing a central hole infiltrated with nematic liquid crystal (NLC) and two additional air holes in the core region is exploited to obtain an ultra-broadband single polarization single mode photonic crystal fiber (SPSM-PCF). The effects of structural parameters on the SPSM operation are studied using the full-vectorial finite element method. Numerical results show that the proposed structure can attain the SPSM operation bandwidth of 1610 nm (from 1.51 to 3.12 mu m) with confinement loss lower than 0.01 dB/km. The SPSM operation range can also be widely tuned to shorter wavelengths by adjusting the structure parameters. And meanwhile, a broad dispersion-flattened SPSM PCF is also obtained around the communication wavelength. Moreover, the dual-core SPSM PCF has also been investigated, enabling potential applications in the wavelength splitter of 1.31 and 1.55 mu m bands at a short fiber length of 1.629 mm with SPSM operation.

• 出版日期2017-8-1
• 单位北京交通大学; 亚稳材料制备技术与科学国家重点实验室; 燕山大学