Low Loss and Low Dispersion Fiber for Transmission Applications in the Terahertz Regime

Rana, Sohel; Rakin, Adnan Siraj; Subbaraman, Harish; Leonhardt, R.; Abbott, Derek

doi:10.1109/lpt.2017.2693203

Cited by 30 publications

(11 citation statements)

References 37 publications

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“…The research so far on PCF-based THz sensors has focused on reducing the propagation losses in PCFs, as most materials experience a high absorption loss in the terahertz band. Several fiber structures for enabling low-loss propagation have been reported [11][12][13][24][25][26]. Of these, porous core based photonic crystal fiber (PCF) sensors [11][12][13] have shown high sensitivity and low absorption loss.…”

Section: Introductionmentioning

confidence: 99%

A Highly Sensitive, Polarization Maintaining Photonic Crystal Fiber Sensor Operating in the THz Regime

2018

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In this paper, a high sensitivity, polarization preserving photonic crystal fiber (PCF), based on circular air holes for sensing in the terahertz (THz) band, is presented. The finite element method, a practical and precise computational technique for describing the interactions between light and matter, is used to compute the modal properties of the designed fiber. For the designed PCF, comprising of circular air holes in both the cladding and in the porous core, a relative sensitivity of 73.5% and a high birefringence of 0.013 are achieved at 1.6 THz. The all circular air-hole structure, owing to its simplicity and compatibility with the current fiber draw technique for PCF fabrication, can be realized practically. It is anticipated that the designed fiber can be employed in applications such as detection of biological samples and toxic chemicals, imaging, and spectroscopy.

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Section: Introductionmentioning

confidence: 99%

A Highly Sensitive, Polarization Maintaining Photonic Crystal Fiber Sensor Operating in the THz Regime

2018

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“…Moreover, variations only in four parameters, such as effective material loss (EML), dispersion, power fraction, and CL, were discussed. 28 In 2018, Islam et al 29 also studied similar parameters as in Ref. 28 using elliptical core and rectangular slotted cladding structure.…”

Section: Introductionmentioning

confidence: 97%

“…Several slots-based PCF structures, such as slotted cladding-porous core 29 and slotted cladding-slotted-core PCF 28,30 designs as mentioned earlier, have been extensively studied for THz transmission. More porous core leads to less material for light interaction.…”

Section: Introductionmentioning

confidence: 99%

“…In 2009, Atakaramians et al 27 designed an asymmetric porous fiber (porosity ∼65%) with rectangular slots, wherein extrusion techniques were utilized to fabricate noncircular polymerbased microstructure fibers. In 2017, Rana et al 28 proposed low-loss and -dispersion fiber for transmission in THz range. They used slotted core and rectangular structures in cladding to realize material absorption loss of 0.0103 to 0.0145 cm −1 and dispersion below 0.5 ps∕THz∕cm in the frequency range of 0.5 to 0.9 THz.…”

Section: Introductionmentioning

confidence: 99%

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Performance analysis of slotted rectangular photonic crystal fiber structures in terahertz waveguidance

2022

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. For an efficient and reliable transmission of data beyond 5G and 6G technologies, proper waveguide structures are needed. We present a rectangular solid-core slotted cladding photonic crystal fiber (PCF) and analyze its signal transmission capability in the terahertz (THz) regime. The proposed PCF performances have been investigated numerically using the finite element method. Various parameters, such as birefringence, core power fraction, effective material loss, effective area, mode-field diameter, beat length, dispersion, confinement loss, etc., have been studied by varying the geometry of the PCFs. The obtained simulation results exhibit dispersion of the order 2 ns / THz / cm, high birefringence of 0.0983, low confinement loss of the order 10 − 19 mm − 1, the effective area of 0.073 mm2, and high core power fraction of 99.8% in 0.2 to 2 THz range. All the parameters have been optimized among six different structures of the proposed PCF. This analysis will be helpful for the researchers to predict the transmission capability of THz waves in a rectangular PCF waveguide, which assures the boost in communication beyond 5G toward 6G evolution.

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“…The PCF shows EML of 0.43 dB/cm and higher birefringence of 0.033. In [14] a rectangular slotted core and slotted cladding Photonic crystal fiber has been illustrated which shows low dispersion 0.5 ps/THz/cm and low material absorption loss of 0.0103-0.0145 cm -1 . Circular air holes based PCF with high birefringence has been shown in [15].…”

Section: Introductionmentioning

confidence: 99%

Epsilon Near Zero (ENZ) Based Kagome Photonic Crystal Fiber for Low Loss, High Birefringence and Near Zero Flat Dispersion in THz Regime

Asaduzzaman¹,

Rehana²,

Aziz³

et al. 2021

Preprint

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In this research, we have proposed two novel types of Kagome PCFs one is slotted core PCF (S-KPCF) and another one is circular PCF (C-KPCF). FEM has been applied with boundary condition to investigate the optical properties of Proposed PCFs. HRS material along with Epsilon Near Zero (ENZ) material has been applied in core and TOPAS was used as background material. Numerical investigation takes place a wider frequency range for 0.8 THz to 2 THz. Slotted core PCF (S-KPCF) shows eminent birefringence of 2.98×10− 2, Lower EML of 0.232 cm− 1, lower confinement loss of 2.76×10− 8, Bending loss 10.76×10− 9, Total loss of 0.232cm− 1 at frequency 1THz. Besides circular core PCF (C-KPCF) shows eminent birefringence of 8.69×10− 2, Lower effective material loss of 0.746 cm− 1, lower confinement loss of 2.80×10− 7, Bending loss 7.76×10− 9, Total loss of 0.746cm− 1 at 1THz. Both PCFs show flat dispersion near zero (for S-KPCF is -0.997ps/nm/Km and for C-KPCF is -0.797ps/nm/Km) range. V-Parameter of both of the PCF indicates that both PCF is multimode PCF. Comparison of the proposed PCFs shows that C-KPCF shows better results than S-KPCF and both PCFs shows better results than previous PCFs.

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Low Loss and Low Dispersion Fiber for Transmission Applications in the Terahertz Regime

Cited by 30 publications

References 37 publications

A Highly Sensitive, Polarization Maintaining Photonic Crystal Fiber Sensor Operating in the THz Regime

A Highly Sensitive, Polarization Maintaining Photonic Crystal Fiber Sensor Operating in the THz Regime

Performance analysis of slotted rectangular photonic crystal fiber structures in terahertz waveguidance

Epsilon Near Zero (ENZ) Based Kagome Photonic Crystal Fiber for Low Loss, High Birefringence and Near Zero Flat Dispersion in THz Regime

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