Low Loss High Core Power Fraction Silicon Based Photonic Crystal Fiber for Efficient Wave Propagation in THz Regime

2019 ◽  
Author(s):  
Mohammad Saiful Islam ◽  
Md. Anwar Sadath ◽  
Shahadat Hossain ◽  
Sabbir Ahmed Khan ◽  
Chinmoy Das ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Low Loss ◽  
Crystal Fiber ◽  
Silicon Based ◽  
Power Fraction

Design and characterization of a low-loss, dispersion-flattened photonic crystal fiber for terahertz wave propagation

Optik ◽  
2017 ◽  
Vol 145 ◽  
pp. 398-406 ◽  
Author(s):  
Md. Saiful Islam ◽  
Jakeya Sultana ◽  
Javid Atai ◽  
Mohammad Rakibul Islam ◽  
Derek Abbott
Keyword(s):  
Wave Propagation ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Terahertz Wave ◽  
Low Loss ◽  
Crystal Fiber

Ultra-low Loss with Single Mode Polymer-Based Photonic Crystal Fiber for THz Waveguide

2019 ◽  
Vol 40 (4) ◽  
pp. 411-417 ◽  
Author(s):  
Shuvo Sen ◽  
Md. Shadidul Islam ◽  
Bikash Kumar Paul ◽  
Md. Ibadul Islam ◽  
Sawrab Chowdhury ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Single Mode ◽  
Effective Area ◽  
Low Loss ◽  
Long Distance ◽  
Material Loss ◽  
Crystal Fiber ◽  
The Core ◽  
Power Fraction

Abstract In this article, a low loss circular photonic crystal fiber (C-PCF) has been suggested as Terahertz (THz) waveguide. Both the core and cladding vicinity of the suggested PCF are constituted by circular-shaped air holes. The optical properties such as effective material loss, effective area, core power fraction and V-parameter have numerically been probed by utilizing full vectorial finite element method (FEM) with perfectly matched layers (FMLs) boundary condition. The reported PCF reveals low absorption loss and large effective area of 0.04 cm−1 and 2.80×10−07 m2 respectively at 1 THz operating frequency. In addition, the core power fraction of the fiber is about 50.83 % at the same activation frequency. The V-parameter shows that the proposed PCF acts as a single mode over 0.70 to 1.15 THz frequency. So, the reported PCF offers the best performance in long distance communication applications.

Extremely Low Loss of Photonic Crystal Fiber for Terahertz Wave Propagation in Optical Communication Applications

2020 ◽  
Vol 41 (4) ◽  
pp. 393-401 ◽  
Author(s):  
Fahad Ahmed ◽  
Subrata Roy ◽  
Bikash Kumar Paul ◽  
Kawsar Ahmed ◽  
Ali Newaz Bahar
Keyword(s):  
Wave Propagation ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Fem Simulation ◽  
Effective Area ◽  
Low Loss ◽  
Material Loss ◽  
Scattering Loss ◽  
Thz Wave ◽  
Crystal Fiber

AbstractAn enormously low loss symmetrical hybrid decagonal porous core spiral photonic crystal fiber (SH-PCF) has been proposed for terahertz (THz) wave guiding. The modal characteristics of the fiber and its mathematical analysis have been numerically completed using a full-vector finite element method (FEM). Simulation results show an ultra-low material loss of 0.0167 cm−1 and large effective area 1.95×106 µm2 which is 91.6 % of bulk absorption material loss at controlling frequency f=1.0 THz with a core porosity 42 %. Additionally, proposed structure establishes the comparatively higher core power fraction maintaining lower scattering loss about 1.8×10−15 dB/cm at the same operating frequency. It promises the aforementioned advantages for efficient THz wave propagation.

scholarly journals Spider Web-Shaped Photonic Crystal Fiber for THz Wave Propagation

2021 ◽  
pp. 100137
Author(s):  
Yanan Wang ◽  
Guangyu Jiang ◽  
Zijian Yu ◽  
Qingke Wang ◽  
Xiaoman Jiang
Keyword(s):  
Wave Propagation ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Spider Web ◽  
Thz Wave ◽  
Crystal Fiber

Extremely Low Loss THz Guidance Using Kagome Lattice Porous Core Photonic Crystal Fiber

2015 ◽  
Author(s):  
Md. Anwar Hossain ◽  
G.K.M. Hasanuzzaman ◽  
Md. Selim Habib ◽  
S. M. Abdur Razzak ◽  
Yoshinori Namihira
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Kagome Lattice ◽  
Low Loss ◽  
Kagomé Lattice ◽  
Crystal Fiber ◽  
Porous Core

Low Loss Photonic Crystal Fiber Fabricated by Slurry Casting Method

2012 ◽  
Author(s):  
Tamotsu Yajima ◽  
Jun Yamamoto ◽  
Futoshi Ishii ◽  
Toshihiko Hirooka ◽  
Masato Yoshida ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Low Loss ◽  
Casting Method ◽  
Crystal Fiber

Design and Characterization of an Ultra Low Loss, Dispersion-Flattened Slotted Photonic Crystal Fiber for Terahertz Application

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Mohammad Rakibul Islam ◽  
Md. Arif Hossain ◽  
Syed Iftekhar Ali ◽  
Jakeya Sultana ◽  
Md. Saiful Islam
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Single Mode ◽  
Confinement Loss ◽  
Terahertz Frequency ◽  
Frequency Range ◽  
Low Loss ◽  
Material Loss ◽  
Crystal Fiber

AbstractA novel photonic crystal fiber (PCF) based on TOPAS, consisting only rectangular slots is presented and analyzed in this paper. The PCF promises not only an extremely low effective material loss (EML) but also a flattened dispersion over a broad frequency range. The modal characteristics of the proposed fiber have been thoroughly investigated using finite element method. The fiber confirms a low EML of 0.009 to 0.01 cm−1 in the frequency range of 0.77–1.05 THz and a flattened dispersion of 0.22±0.01 ps/THz/cm. Besides, some other significant characteristics like birefringence, single mode operation and confinement loss have also been inspected. The simplicity of the fiber makes it easily realizable using the existing fabrication technologies. Thus it is anticipated that the new fiber has the potential to ensure polarization preserving transmission of terahertz signals and to serve as an efficient medium in the terahertz frequency range.

scholarly journals Efficient Photonic Crystal Fiber Design for Higher OAM Modes with Low Loss Towards Next Generation THz Communication

2021 ◽  
Author(s):  
Bibhatsu Kuiri ◽  
Bubai Dutta ◽  
Nilanjana Sarkar ◽  
Saikat Santra ◽  
Paulomi Mandal ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Confinement Loss ◽  
Solid Core ◽  
Low Loss ◽  
Crystal Fiber ◽  
Fiber Design ◽  
Effective Mode Area ◽  
Mode Purity ◽  
Mode Area

Abstract A newer and efficient solid core with air holes and ring based circular photonic crystal fiber (C-PCF) design is proposed, developed, and studied. The C-PCF structure with a ring core and three layers of air holes is developed to communicate terahertz frequency of the range of 1 THz to 3 THz. Finite element method (FEM) is used to optimize the position, shape and dimensions of air holes and refractive index (RI) of material for the proposed PCF design and check the efficiency to support different orbital angular momentum (OAM) modes for communication. Our novel designed C-PCF supports multiple stable modes with mode purity above 0.9. Confinement loss is in the range of 10-12 dB/cm, highest effective mode area in the order of 1 mm2 is achieved in the investigated study for 3 THz transmission. The study observes that the performance of PCF is strongly dependent on RI of core and cladding.

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