Zero dispersion with high birefringence photonic crystal fibre

2014 ◽  
Author(s):  
Pranaw Kumar ◽  
Naikatmana Pani ◽  
Chandrani Paul ◽  
Amlan Datta
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fibre ◽  
High Birefringence

High birefringence fibre Bragg gratings written in tapered photonic crystal fibre with femtosecond IR radiation

2007 ◽  
Vol 43 (1) ◽  
pp. 16 ◽  
Author(s):  
D. Grobnic ◽  
H. Ding ◽  
S.J. Mihailov ◽  
C.W. Smelser ◽  
J. Broeng
Keyword(s):  
Photonic Crystal ◽  
Bragg Gratings ◽  
Ir Radiation ◽  
Photonic Crystal Fibre ◽  
High Birefringence ◽  
Fibre Bragg Gratings

Investigation of high birefringence and chromatic dispersion management in photonic crystal fibre with square air holes

Optik ◽  
2015 ◽  
Vol 126 (20) ◽  
pp. 2269-2274 ◽  
Author(s):  
Abdelkader Medjouri ◽  
Lotfy Mokhtar Simohamed ◽  
Omar Ziane ◽  
Azzedine Boudrioua
Keyword(s):  
Photonic Crystal ◽  
Chromatic Dispersion ◽  
Dispersion Management ◽  
Photonic Crystal Fibre ◽  
High Birefringence

Numerical analysis of photonic crystal fibre with high birefringence and high nonlinearity

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Patrick Atsu Agbemabiese ◽  
Emmanuel Kofi Akowuah
Keyword(s):  
Finite Element Method ◽  
Boundary Condition ◽  
Finite Element ◽  
Photonic Crystal ◽  
Numerical Analysis ◽  
Chromatic Dispersion ◽  
Confinement Loss ◽  
Photonic Crystal Fibre ◽  
High Birefringence ◽  
Air Hole

AbstractA four-ring microstructure photonic crystal fibre with a descending air hole ring cladding is presented. Numerical analysis of the structure is done using full vectorial finite element method with perfectly matched layer (PML) boundary condition. It is demonstrated that it is possible to achieve at 1.55 µm confinement loss of 2.767 × 10−5 dB/m, birefringence of 0.00346 and a nonlinear co-efficient of 41.77 km−1 W−1. Also, chromatic dispersion realised suggests a tuneable zero dispersion at 0.9–1.1 µm 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.

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