Theoretical analysis of large negative dispersion photonic crystal fiber with small confinement loss

2020 ◽  
Vol 59 (28) ◽  
pp. 8925
Author(s):  
Md. Ekhlasur Rahaman ◽  
Md. Mahbub Hossain ◽  
Himadri Shekhar Mondal ◽  
Rekha Saha ◽  
Ahmed Saif Muntaseer
Keyword(s):  
Photonic Crystal ◽  
Theoretical Analysis ◽  
Photonic Crystal Fiber ◽  
Confinement Loss ◽  
Crystal Fiber ◽  
Negative Dispersion

scholarly journals DESIGN OF HEXAGONAL PHOTONIC CRYSTAL FIBER WITH ULTRA-HIGH BIREFRINGENT AND LARGE NEGATIVE DISPERSION COEFFICIENT FOR THE APPLICATION OF BROADBAND FIBER

2019 ◽  
Vol 2 (1) ◽  
pp. 9-16
Author(s):  
Shovasis Kumar Biswas
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Dispersion Coefficient ◽  
Nonlinear Coefficient ◽  
Simulation Software ◽  
Confinement Loss ◽  
High Birefringence ◽  
Crystal Fiber ◽  
Negative Dispersion ◽  
Operating Wavelength

The purpose of this paper is to design a hexagonal microstructure photonic crystal fiber (PCF) which gives ultra-high birefringence and very low confinement loss for sensing application. To characterize the modal properties of the proposed photonic crystal fiber, finite element method is used. We found ultra-high birefringence of 3.34×10-2 at operating wavelength 1550nm by using simulation software comsol multiphysics. Our proposed PCF gives large value of nonlinear coefficient of 63.51 W-1km-1, large value of negative dispersion coefficient of -566.6 ps/ (nm.km), and also ultra-low confinement loss which is in the order of 10-7.

Numerical Analysis of Large Negative Dispersion and highly Birefringent Photonic Crystal Fiber

Optik ◽  
2020 ◽  
Vol 218 ◽  
pp. 164997 ◽  
Author(s):  
Anurag Upadhyay ◽  
Shivam Singh ◽  
Y.K. Prajapati ◽  
Rajeev Tripathi
Keyword(s):  
Photonic Crystal ◽  
Numerical Analysis ◽  
Photonic Crystal Fiber ◽  
Crystal Fiber ◽  
Negative Dispersion

scholarly journals Ring-Core Photonic Crystal Fiber of Terahertz Orbital Angular Momentum Modes with Excellence Guiding Properties in Optical Fiber Communication

Photonics ◽  
2021 ◽  
Vol 8 (4) ◽  
pp. 122
Author(s):  
Fahad Ahmed Al-Zahrani ◽  
Md. Anowar Kabir
Keyword(s):  
Angular Momentum ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Orbital Angular Momentum ◽  
High Capacity ◽  
Optical Fiber Communication ◽  
Fused Silica ◽  
Confinement Loss ◽  
Crystal Fiber ◽  
Ring Core

The orbital angular momentum (OAM) of light is used for increasing the optical communication capacity in the mode division multiplexing (MDM) technique. A novel and simple structure of ring-core photonic crystal fiber (RC-PCF) is proposed in this paper. The ring core is doped by the Schott sulfur difluoride material and the cladding region is composed of fused silica with one layer of well-patterned air-holes. The guiding of Terahertz (THz) OAM beams with 58 OAM modes over 0.70 THz (0.20 THz–0.90 THz) frequency is supported by this proposed RC-PCF. The OAM modes are well-separated for their large refractive index difference above 10−4. The dispersion profile of each mode is varied in the range of 0.23–7.77 ps/THz/cm. The ultra-low confinement loss around 10−9 dB/cm and better mode purity up to 0.932 is achieved by this RC-PCF. For these good properties, the proposed fiber is a promising candidate to be applied in the THz OAM transmission systems with high feasibility and high capacity.

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