Fabrication and characterization of solid-core photonic crystal fiber with steering-wheel air-cladding for strong evanescent field overlap

2008 ◽  
Vol 281 (1) ◽  
pp. 55-60 ◽  
Author(s):  
Yinian Zhu ◽  
Ryan T. Bise ◽  
Jiri Kanka ◽  
Pavel Peterka ◽  
Henry Du
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Evanescent Field ◽  
Steering Wheel ◽  
Solid Core ◽  
Crystal Fiber ◽  
Fabrication And Characterization

A Solid-Core Photonic Crystal Fiber Nanosensor

2014 ◽  
Vol 609-610 ◽  
pp. 885-890
Author(s):  
Ji Luo ◽  
Wen Ying Ma ◽  
Jun Yao ◽  
Wei Min Wang ◽  
Qiao Lin
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Power Transmission ◽  
Optical Fiber Sensor ◽  
Ethanol Solution ◽  
Evanescent Field ◽  
Solid Core ◽  
Crystal Fiber ◽  
Biochemical Detection

A novel evanescent field optical fiber sensor based on a solid-core photonic crystal fiber with large holes has been introduced and successfully fabricated. Experiments show that the ethanol solution of unit concentration causes 0.461dB attenuation of absorbance. The finite element numerical simulation of the grapefruit photonic crystal fiber has been performed. The energy overlap factor is 0.0039 when holes are filled with air, and that is 0.012 when holes are filled with water for the different effective refractive index of the holes. Besides, the relationship between the maximum power transmission and the refractive index is also studied and analyzed. This research provides helpful instructions to the study of evanescent field sensing based on the solid-core photonic crystal fiber with large holes especially for biochemical detection.

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.

Design and Characterization of Highly Birefringent Residual Dispersion Compensating Photonic Crystal Fiber

2014 ◽  
Vol 32 (23) ◽  
pp. 4578-4584 ◽  
Author(s):  
Md Imran Hasan ◽  
S. M. Abdur Razzak ◽  
Md Samiul Habib
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Crystal Fiber
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