Design and Characterization of low loss Single Mode Fiber for Terahertz Signal Transmission

Bosu, Akash; Basak, Chaity; Sharmin, Shumaia; Hossain, K.M. Tasrif; Urmi, Sharmina Zaman; Mahfuz, Mohammad Al

doi:10.1109/icasert.2019.8934665

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…There has been a significant progress in the study of the Terahertz wave propagation in PCF, see [6,7,8,10], where extensive analysis is done on the transmission characteristics of solid-core PCF fibre using Teflon as the background material for getting low confinement losses below 10 −7 cm −1 dB/km . Farhana Akter Mou et al [7] have proposed a PCF structure that contain circular sectored cladding and a square-shaped core.…”

Section: Icctpp-2022mentioning

confidence: 99%

Terahertz Wave Propagation Characteristics in Graded Teflon Based Solid-Core Photonic Crystal Fibre

Dash

Mathur

Pandey

et al. 2023

J. Phys.: Conf. Ser.

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In the past few years, photonic crystal fibre (PCF) in the Terahertz spectrum is drawing significant attention because of its multifaceted applications in high-speed data communication, spectroscopy, sensing, etc. The proposed PCF structure is based on a Teflon solid core surrounded by porous cladding. Teflon has been used as a background material because of its high flexibility and the possibility of making longer PCFs, which is capable of guiding waves in the THz region. The porous cladding consists of circular air-holes positioned hexagonally whose diameters increase with each subsequent layer keeping the pitch constant thus providing a graded-index profile. The diameters of air holes in each hexagonal layer are 1 mm, 1.2 mm and 1.5 mm respectively, maintaining a constant pitch of 2mm and a perfectly matched layer (PML) thickness of 3mm. We have examined the transmission characteristics of the proposed profile in the frequency range of 0.8 THz to 2.5 THz. The modal solution of the profile is solved using the Finite Element Method based on COMSOL Multiphysics version 5.5. Using the graded-index profile, we have obtained a large effective modal area of around 5.6 mm2 at 1 THz and a low confinement loss of 2.25 × 10−4 dB/km at the same frequency. Due to this large effective modal area, we get higher damage threshold and weaker non-linear effects, making it suitable for high power applications.

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Section: Icctpp-2022mentioning

confidence: 99%

Terahertz Wave Propagation Characteristics in Graded Teflon Based Solid-Core Photonic Crystal Fibre

Dash

Mathur

Pandey

et al. 2023

J. Phys.: Conf. Ser.

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“…When the light wave passes through the core, it loses a significant amount of energy due to the power absorbing property of the background material [62]. This originates from the EML.…”

Section: Performance Analysismentioning

confidence: 99%

Design of a hexagonal outlined porous cladding with vacant core photonic crystal fibre biosensor for cyanide detection at THz regime

Islam

Naser

Jaba

et al. 2022

IET Optoelectronics

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A hexagonal outlined porous cladding with vacant core photonic crystal fibre (HOPC‐VC‐PCF) sensor using Zeonex has been presented, which can detect cyanides at the THz regime. Cyanides are incredibly lethal chemicals to humans as they can rapidly cause impairment or even death; such harmful substances must be identified precisely. The proposed model has been analysed at a broad spectrum of THz regimes for three different analytes, and the numerical investigation is performed using the Finite element method (FEM). Simulation results exhibit that at optimum design parameters, extremely high sensitivity of 99.75%, negligible confinement loss of 0.5 × 10−13 cm−1, extremely low and flat dispersion of 0.12 ps THz/cm, and other excellent features were obtained. The performance analysis and the design methodology have been depicted in detail. Due to the simplistic design, fabrication of the model is easily achievable by current technology. The remarkable sensing capabilities will not only make it suited in chemicals analysis but also will play vital roles in other applications as well.

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Design and Characterization of low loss Single Mode Fiber for Terahertz Signal Transmission

Cited by 2 publications

References 9 publications

Terahertz Wave Propagation Characteristics in Graded Teflon Based Solid-Core Photonic Crystal Fibre

Terahertz Wave Propagation Characteristics in Graded Teflon Based Solid-Core Photonic Crystal Fibre

Design of a hexagonal outlined porous cladding with vacant core photonic crystal fibre biosensor for cyanide detection at THz regime

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