scholarly journals Design of Polarization Splitter via Liquid and Ti Infiltrated Photonic Crystal Fiber

Crystals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 103 ◽  
Author(s):  
Qiang Xu ◽  
Wanli Luo ◽  
Kang Li ◽  
Nigel Copner ◽  
Shebao Lin
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Extinction Ratio ◽  
Beam Propagation Method ◽  
Short Length ◽  
Filling Material ◽  
Polarization Splitter ◽  
Coupling Loss ◽  
High Birefringence ◽  
Crystal Fiber

We propose a new polarization splitter (PS) based on Ti and liquid infiltrated photonic crystal fiber (PCF) with high birefringence. Impacts of parameters such as shape and size of the air holes in the cladding and filling material are investigated by using a vector beam propagation method. The results indicate that the PS offers an ultra-short length of 83.9 μm, a high extinction ratio of −44.05 dB, and a coupling loss of 0.0068 dB and at 1.55 μm. Moreover, an extinction ratio higher than −10 dB is achieved a bandwidth of 32.1 nm.

Short Polarization Splitter Based on Dual-Core Photonic Crystal Fiber with Ultra-high Extinction Ratio

2015 ◽  
Vol 42 (6) ◽  
pp. 0605006
Author(s):  
李绪友 Li Xuyou ◽  
许振龙 Xu Zhenlong ◽  
刘攀 Liu Pan ◽  
凌卫伟 Ling Weiwei ◽  
张志永 Zhang Zhiyong
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Extinction Ratio ◽  
Polarization Splitter ◽  
Crystal Fiber ◽  
High Extinction Ratio ◽  
Dual Core

Short Length Polarization Splitter Based on Dual Elliptical-Core Photonic Crystal Fiber

2012 ◽  
Vol 39 (10) ◽  
pp. 1005004
Author(s):  
李荣敏 Li Rongmin ◽  
曹晔 Cao Ye ◽  
童峥嵘 Tong Zhengrong
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Short Length ◽  
Polarization Splitter ◽  
Crystal Fiber ◽  
Elliptical Core

Design of a Polarization Splitter for Ultra-broadband Dual-Core Photonic Crystal Fiber

2021 ◽  
Author(s):  
Yongtao Li ◽  
Jiesong Deng ◽  
Zhen Yang ◽  
Hui Zou ◽  
Yuzhou Ma
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Near Infrared ◽  
Optical Network ◽  
Extinction Ratio ◽  
Polarization Splitter ◽  
Infrared Wavelength ◽  
Crystal Fiber ◽  
Vector Finite Element ◽  
Dual Core

Abstract A novel ultra-broadband polarization splitter based on dual-core photonic crystal fiber (DC-PCF) is designed. The full-vector finite element method (FEM) and coupled-mode theory are employed to investigate the characteristics of the polarization splitter. According to the numerical results, graphene-filled layer can not only broaden the working bandwidth but also reduce the size of polarization splitter. Furthermore, the fluorine-doped region and the germanium-doped region could broaden the bandwidth. Apart from that, the 4.78-mm-long polarization splitter can achieve an extinction ratio of -98.6 dB at the wavelength of 1550 nm. When extinction ratio is less than -20 dB, the range of the wavelength is 1027-1723 nm with a bandwidth of 696 nm. Overall, the polarization splitter can be applied to all-optical network communication system in the infrared and near-infrared wavelength range.

scholarly journals A Highly Birefringent Photonic Crystal Fiber for Terahertz Spectroscopic Chemical Sensing

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1799
Author(s):  
Tianyu Yang ◽  
Liang Zhang ◽  
Yunjie Shi ◽  
Shidi Liu ◽  
Yuming Dong
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Chemical Sensing ◽  
Numerical Aperture ◽  
Wide Band ◽  
Relative Sensitivity ◽  
Chemical Sensitivity ◽  
High Birefringence ◽  
Crystal Fiber ◽  
Polarization Maintaining

A photonic crystal fiber (PCF) with high relative sensitivity was designed and investigated for the detection of chemical analytes in the terahertz (THz) regime. To ease the complexity, an extremely simple cladding employing four struts is adopted, which forms a rectangular shaped core area for filling with analytes. Results of enormous simulations indicate that a minimum 87.8% relative chemical sensitivity with low confinement and effective material absorption losses can be obtained for any kind of analyte, e.g., HCN (1.26), water (1.33), ethanol (1.35), KCN (1.41), or cocaine (1.50), whose refractive index falls in the range of 1.2 to 1.5. Besides, the PCF can also achieve high birefringence (∼0.01), low and flat dispersion, a large effective modal area, and a large numerical aperture within the investigated frequency range from 0.5 to 1.5 THz. We believe that the proposed PCF can be applied to chemical sensing of liquid and THz systems requiring wide-band polarization-maintaining transmission and low attenuation.

Low insertion loss and high extinction ratio analysis of a new surface plasmon resonance based photonic crystal fiber filter

Optik ◽  
2019 ◽  
Vol 194 ◽  
pp. 163069 ◽  
Author(s):  
Kawsar Ahmed ◽  
Md. Ferdous ◽  
Md. Nazmul Hossen ◽  
Bikash Kumar Paul ◽  
I.S. Amiri ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Surface Plasmon ◽  
Insertion Loss ◽  
Plasmon Resonance ◽  
Extinction Ratio ◽  
Ratio Analysis ◽  
Crystal Fiber ◽  
Low Insertion Loss
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