Pub Date : 2019-12-01DOI: 10.1109/ICTP48844.2019.9041806
M. J. Rahimi, S. Majumder
In this paper, an analytical model is developed for evaluating the performance of a multi-hop decode and forward (DF) single input single output(SISO) power line communiction(PLC) system in terms of BER. The expression for conditional BER considering the Middleton class A (MCA) noise model is developed. The probability density function (PDF) of the continuously varying signal to noise ratio (SNR) is also derived to find out the average BER in the presence of Rayleigh fading. The overall BER performance of the N-hop single input single output PLC (SISO-PLC) equipped with the decode and forward technique is evaluated for various SNR. The effect of different parameters of the MCA noise model is observed. In addition, the effect of increasing the number of hops and the effect of the different end to end distances are also evaluated. It is found that for a given end to end link distance, the performance in terms of BER gets better when the hop number is increased with decode and forward technique.
{"title":"BER Analysis of a Multi-Hop Decode and Forward PLC System Affected by Rayleigh Fading and Middleton Class A Channel Noise","authors":"M. J. Rahimi, S. Majumder","doi":"10.1109/ICTP48844.2019.9041806","DOIUrl":"https://doi.org/10.1109/ICTP48844.2019.9041806","url":null,"abstract":"In this paper, an analytical model is developed for evaluating the performance of a multi-hop decode and forward (DF) single input single output(SISO) power line communiction(PLC) system in terms of BER. The expression for conditional BER considering the Middleton class A (MCA) noise model is developed. The probability density function (PDF) of the continuously varying signal to noise ratio (SNR) is also derived to find out the average BER in the presence of Rayleigh fading. The overall BER performance of the N-hop single input single output PLC (SISO-PLC) equipped with the decode and forward technique is evaluated for various SNR. The effect of different parameters of the MCA noise model is observed. In addition, the effect of increasing the number of hops and the effect of the different end to end distances are also evaluated. It is found that for a given end to end link distance, the performance in terms of BER gets better when the hop number is increased with decode and forward technique.","PeriodicalId":127575,"journal":{"name":"2019 IEEE International Conference on Telecommunications and Photonics (ICTP)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127488948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-01DOI: 10.1109/ICTP48844.2019.9041767
M. Rahman, Farhana Akter Mou, A. Al Mahmud, M. Bhuiyan, Mohammad Tausiful Islam
Alcoholic agent is excessively harmful for humans. Considering the level of harmfulness, an efficient and flexible alcohol detection method is very essential. In this context, a hollow core photonic crystal fiber (HC-PCF) based optical sensor is designed for detecting alcohol in beverages as well as in any liquid samples, which is constructed with slotted air holes in the cladding section and a square hollow core. The presented PCF structure yields an extremely high sensitivity of 89.85% with ultra-low confinement loss of 10−14 cm−1 in THz frequency range of 0.4 to 1.2. To design and investigate the sensing properties of PCF based sensor COMSOL multiphysics software v.5.3a is used with a finite element method as a solver. Design methodology of presented PCF geometry and fabrication feasibility are also addressed.
{"title":"Photonic Crystal Fiber based Terahertz Sensor for Alcohol Detection in Beverages: Design and Analysis","authors":"M. Rahman, Farhana Akter Mou, A. Al Mahmud, M. Bhuiyan, Mohammad Tausiful Islam","doi":"10.1109/ICTP48844.2019.9041767","DOIUrl":"https://doi.org/10.1109/ICTP48844.2019.9041767","url":null,"abstract":"Alcoholic agent is excessively harmful for humans. Considering the level of harmfulness, an efficient and flexible alcohol detection method is very essential. In this context, a hollow core photonic crystal fiber (HC-PCF) based optical sensor is designed for detecting alcohol in beverages as well as in any liquid samples, which is constructed with slotted air holes in the cladding section and a square hollow core. The presented PCF structure yields an extremely high sensitivity of 89.85% with ultra-low confinement loss of 10−14 cm−1 in THz frequency range of 0.4 to 1.2. To design and investigate the sensing properties of PCF based sensor COMSOL multiphysics software v.5.3a is used with a finite element method as a solver. Design methodology of presented PCF geometry and fabrication feasibility are also addressed.","PeriodicalId":127575,"journal":{"name":"2019 IEEE International Conference on Telecommunications and Photonics (ICTP)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125723151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-01DOI: 10.1109/ICTP48844.2019.9041804
Abyad Enan, M. Bhuiyan
Ferroelectric RAM (FeRAM) is a Non-Volatile Memory (NVM) which offers high endurance, fast speed, low power and high density. Thus, they are suitable to replace conventional memories such as Dynamic RAM (DRAM). However, FeRAM are vulnerable to side channel attack. An adversary can measure the current drawn by the memory during read and write operation and find corresponding data being written to it or being read from the memory. This is a major problem for FeRAM as it would compromise the security of data being transmitted over communication networks. This work, for the first time, investigates the vulnerability of FeRAMs with noise. We have used Discrete Wavelet Transform (DWT) to reduce measurement noise since it is widely used for reducing noise from different type of signals. SureShrink operation is performed for noise reduction of write and read current. The analysis of noise filtered write and read current reveals that, FeRAM write operation is vulnerable to side channel attack whereas its read operation is resilient to such attacks since the data signature in the read current is minimal and vanishes due to measurement/environment noise.
{"title":"Investigation of Side Channel Leakage of FeRAM Using Discrete Wavelet Transform","authors":"Abyad Enan, M. Bhuiyan","doi":"10.1109/ICTP48844.2019.9041804","DOIUrl":"https://doi.org/10.1109/ICTP48844.2019.9041804","url":null,"abstract":"Ferroelectric RAM (FeRAM) is a Non-Volatile Memory (NVM) which offers high endurance, fast speed, low power and high density. Thus, they are suitable to replace conventional memories such as Dynamic RAM (DRAM). However, FeRAM are vulnerable to side channel attack. An adversary can measure the current drawn by the memory during read and write operation and find corresponding data being written to it or being read from the memory. This is a major problem for FeRAM as it would compromise the security of data being transmitted over communication networks. This work, for the first time, investigates the vulnerability of FeRAMs with noise. We have used Discrete Wavelet Transform (DWT) to reduce measurement noise since it is widely used for reducing noise from different type of signals. SureShrink operation is performed for noise reduction of write and read current. The analysis of noise filtered write and read current reveals that, FeRAM write operation is vulnerable to side channel attack whereas its read operation is resilient to such attacks since the data signature in the read current is minimal and vanishes due to measurement/environment noise.","PeriodicalId":127575,"journal":{"name":"2019 IEEE International Conference on Telecommunications and Photonics (ICTP)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131724488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-01DOI: 10.1109/ICTP48844.2019.9041750
Emranul Haque, A. Al Noman, S. Mahmuda, M. Hossain, N. H. Hai, Y. Namihira, Feroz Ahmed
A D-shaped highly sensitive plasmonic resonance sensor for low refractive index (RI) detection is proposed in this work. Plasmonic material layer and the sensing layer have been placed outside of the fiber structure in order to sense the changes in refractive index of the surrounding medium. Titanium dioxide (TiO2) is used as an adhesive agent and coated between silica glass and the plasmonic material to establish strong coupling between core mode and plasmonic mode. Proposed sensor shows maximum Wavelength Sensitivity (WS) of 75,000 nm/RIU with resolution of 1.33×10−6 RIU and maximum figure of merit (FOM) 1500 for analyte RI range of 1.25-1.40. These properties make the proposed sensor a suitable candidate for bio sensing, organic chemical sensing and other analytes detection.
{"title":"Highly Sensitive D-Shaped PCF Based Plasmonic Refractive Index Sensor","authors":"Emranul Haque, A. Al Noman, S. Mahmuda, M. Hossain, N. H. Hai, Y. Namihira, Feroz Ahmed","doi":"10.1109/ICTP48844.2019.9041750","DOIUrl":"https://doi.org/10.1109/ICTP48844.2019.9041750","url":null,"abstract":"A D-shaped highly sensitive plasmonic resonance sensor for low refractive index (RI) detection is proposed in this work. Plasmonic material layer and the sensing layer have been placed outside of the fiber structure in order to sense the changes in refractive index of the surrounding medium. Titanium dioxide (TiO2) is used as an adhesive agent and coated between silica glass and the plasmonic material to establish strong coupling between core mode and plasmonic mode. Proposed sensor shows maximum Wavelength Sensitivity (WS) of 75,000 nm/RIU with resolution of 1.33×10−6 RIU and maximum figure of merit (FOM) 1500 for analyte RI range of 1.25-1.40. These properties make the proposed sensor a suitable candidate for bio sensing, organic chemical sensing and other analytes detection.","PeriodicalId":127575,"journal":{"name":"2019 IEEE International Conference on Telecommunications and Photonics (ICTP)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125200945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-01DOI: 10.1109/ICTP48844.2019.9041729
M. K. Kundu, S. Shabab, A. S. M. Badrudduza
Multipath fading as well as shadowing is liable for the leakage of confidential information from the wireless channels. In this paper a solution to this information leakage is proposed, where a source transmits signal through a α-µ/α-µ composite fading channel considering an eavesdropper is present in the system. Secrecy enhancement is investigated with the help of two fading parameters α and µ. To mitigate the impacts of shadowing a α-µ distribution is considered whose mean is another α-µ distribution which helps to moderate the effects multipath fading. The mathematical expressions of some secrecy matrices such as the probability of non-zero secrecy capacity and the secure outage probability are obtained in closed-form to analyze security of the wireless channel in light of the channel parameters. Finally, Monte-Carlo simulations are provided to justify the correctness of the derived expressions.
{"title":"Information Theoretic Security over α-µ/α-µ Composite Multipath Fading Channel","authors":"M. K. Kundu, S. Shabab, A. S. M. Badrudduza","doi":"10.1109/ICTP48844.2019.9041729","DOIUrl":"https://doi.org/10.1109/ICTP48844.2019.9041729","url":null,"abstract":"Multipath fading as well as shadowing is liable for the leakage of confidential information from the wireless channels. In this paper a solution to this information leakage is proposed, where a source transmits signal through a α-µ/α-µ composite fading channel considering an eavesdropper is present in the system. Secrecy enhancement is investigated with the help of two fading parameters α and µ. To mitigate the impacts of shadowing a α-µ distribution is considered whose mean is another α-µ distribution which helps to moderate the effects multipath fading. The mathematical expressions of some secrecy matrices such as the probability of non-zero secrecy capacity and the secure outage probability are obtained in closed-form to analyze security of the wireless channel in light of the channel parameters. Finally, Monte-Carlo simulations are provided to justify the correctness of the derived expressions.","PeriodicalId":127575,"journal":{"name":"2019 IEEE International Conference on Telecommunications and Photonics (ICTP)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121165365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-01DOI: 10.1109/ICTP48844.2019.9041705
I. Rahman, Pragati Gupta, Zakia Tamanna Tisha, Shahba Tasmiya Mouna, M. S. Alam
In this work, we have analyzed the performance of silica and silicon nanowire based biosensors for sensing different biochemical materials having the refractive index in between 1.4673 and 1.37835. Different optical mode properties such as propagation constant, confinement factor, and fractional power within the specimen have been calculated for both the nanowires considering Mach Zehnder Interferometer based sensing structures. Finally, the sensitivities of both the sensors have been evaluated using modal properties.
{"title":"Performance Analysis and Comparison of Silicon and Silica Nanowire Based Biochemical Sensors","authors":"I. Rahman, Pragati Gupta, Zakia Tamanna Tisha, Shahba Tasmiya Mouna, M. S. Alam","doi":"10.1109/ICTP48844.2019.9041705","DOIUrl":"https://doi.org/10.1109/ICTP48844.2019.9041705","url":null,"abstract":"In this work, we have analyzed the performance of silica and silicon nanowire based biosensors for sensing different biochemical materials having the refractive index in between 1.4673 and 1.37835. Different optical mode properties such as propagation constant, confinement factor, and fractional power within the specimen have been calculated for both the nanowires considering Mach Zehnder Interferometer based sensing structures. Finally, the sensitivities of both the sensors have been evaluated using modal properties.","PeriodicalId":127575,"journal":{"name":"2019 IEEE International Conference on Telecommunications and Photonics (ICTP)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114674052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-01DOI: 10.1109/ICTP48844.2019.9041696
Mohammad Nayem Sarker, M. R. Kaysir, Md Jahirul Islam
Capillary optical fibers (COFs) recently show great promise due to their simplest structure for different sensing applications. Confinement loss (CL) is one of the key parameters that changes with physical sensing measurands. This paper describes a systemic way to understand different modes in COFs, which is necessary for understanding different sensing mechanisms and to design highly sensitive COF based sensors. Here, the CL of the designed COFs are investigated both analytically and numerically. COMSOL Multiphysics was used to simulate and analyze the loss spectra over the wavelength from 500 nm to 3000 nm. The effects of changing different design parameters such as the radius of air core, relative permittivity, and width of the cladding layer are investigated thoroughly. Single-mode behavior was noticed by changing the permittivity of cladding materials. The findings of this work could be useful to understand the basic sensing mechanism of COFs and hollow core type fibers and optimize their design for realizing highly sensitive COF based sensors.
{"title":"Modal analysis of capillary optical fibers and their possible applications in sensing","authors":"Mohammad Nayem Sarker, M. R. Kaysir, Md Jahirul Islam","doi":"10.1109/ICTP48844.2019.9041696","DOIUrl":"https://doi.org/10.1109/ICTP48844.2019.9041696","url":null,"abstract":"Capillary optical fibers (COFs) recently show great promise due to their simplest structure for different sensing applications. Confinement loss (CL) is one of the key parameters that changes with physical sensing measurands. This paper describes a systemic way to understand different modes in COFs, which is necessary for understanding different sensing mechanisms and to design highly sensitive COF based sensors. Here, the CL of the designed COFs are investigated both analytically and numerically. COMSOL Multiphysics was used to simulate and analyze the loss spectra over the wavelength from 500 nm to 3000 nm. The effects of changing different design parameters such as the radius of air core, relative permittivity, and width of the cladding layer are investigated thoroughly. Single-mode behavior was noticed by changing the permittivity of cladding materials. The findings of this work could be useful to understand the basic sensing mechanism of COFs and hollow core type fibers and optimize their design for realizing highly sensitive COF based sensors.","PeriodicalId":127575,"journal":{"name":"2019 IEEE International Conference on Telecommunications and Photonics (ICTP)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128785262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-01DOI: 10.1109/ICTP48844.2019.9041812
Sabah Mahjabeen Sarwar, M. F. Chowdhury, H. Das
Automobiles connectivity to each other and with other infrastructure (e.g. power grid, base stations etc.) are becoming more popular. The advancement in autonomous vehicle and Internet of Things (IoTs) gives the challenge to incorporate high efficiency antennas into the vehicle for wireless communication. However, the transmitters and receivers need to be low-profile, high bandwidth, high gain, and cost effective to enable vehicle telematics. In this paper, a dual band low profile shark fin integrated multi-input multi-output (MIMO) antenna is proposed for 5G and Wi-Max communications. Initially, a corporate fed patch antenna array and a quasi- Yagi antenna is designed for 5G and Wi-Max frequency bands respectively. These two optimized antennas are vertically incorporated, and further optimized to work for dual band applications at 26 GHz and 5.5 GHz. The effects of the gap and parasitic elements between the antennas on the resonance and realized gain pattern are parametrically studied. The simulation results show that the dual band antenna operates from 5.16 GHz to 6.05 GHz and 25.625 GHz to 26.36 GHz with 10 dB return loss bandwidth with a realized gain of 4.43 dB at 5.5 GHz and 4.79 dB at 26 GHz. The scattering parameters, realized gain, and 3D radiation pattern are presented in the results section.
{"title":"A Dual Band Shark Fin Integrated Vehicle Antenna For 5G and Wi-Max Applications","authors":"Sabah Mahjabeen Sarwar, M. F. Chowdhury, H. Das","doi":"10.1109/ICTP48844.2019.9041812","DOIUrl":"https://doi.org/10.1109/ICTP48844.2019.9041812","url":null,"abstract":"Automobiles connectivity to each other and with other infrastructure (e.g. power grid, base stations etc.) are becoming more popular. The advancement in autonomous vehicle and Internet of Things (IoTs) gives the challenge to incorporate high efficiency antennas into the vehicle for wireless communication. However, the transmitters and receivers need to be low-profile, high bandwidth, high gain, and cost effective to enable vehicle telematics. In this paper, a dual band low profile shark fin integrated multi-input multi-output (MIMO) antenna is proposed for 5G and Wi-Max communications. Initially, a corporate fed patch antenna array and a quasi- Yagi antenna is designed for 5G and Wi-Max frequency bands respectively. These two optimized antennas are vertically incorporated, and further optimized to work for dual band applications at 26 GHz and 5.5 GHz. The effects of the gap and parasitic elements between the antennas on the resonance and realized gain pattern are parametrically studied. The simulation results show that the dual band antenna operates from 5.16 GHz to 6.05 GHz and 25.625 GHz to 26.36 GHz with 10 dB return loss bandwidth with a realized gain of 4.43 dB at 5.5 GHz and 4.79 dB at 26 GHz. The scattering parameters, realized gain, and 3D radiation pattern are presented in the results section.","PeriodicalId":127575,"journal":{"name":"2019 IEEE International Conference on Telecommunications and Photonics (ICTP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130903755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-01DOI: 10.1109/ICTP48844.2019.9041801
Md. Nazmus Sakib, M. Anower
In this paper, a multi-core double D like PCF based plasmonic biosensor is proposed and analyzed. The sensor performance is investigated by applying a mode solver based numerical method, FEM. Both sensible and gold coatings are deposited on the external surface for comfortable and more practical realization. This biosensor exhibits the maximum wavelength sensitivity of 8000 nm per RIU and amplitude sensitivity of 522 per RIU with resolution 1.25×10−5 RIU and 1.92×10−5 RIU respectively in the detection range between 1.45 and 1.48. This can also show good linearity with 170 FOM. Owing to the simple design and highly sensitive nature, the proposed biosensor can be precisely applicable for biomolecular analytes detection.
{"title":"Designing and Characterizing a Multi-core PCF SPR Biosensor","authors":"Md. Nazmus Sakib, M. Anower","doi":"10.1109/ICTP48844.2019.9041801","DOIUrl":"https://doi.org/10.1109/ICTP48844.2019.9041801","url":null,"abstract":"In this paper, a multi-core double D like PCF based plasmonic biosensor is proposed and analyzed. The sensor performance is investigated by applying a mode solver based numerical method, FEM. Both sensible and gold coatings are deposited on the external surface for comfortable and more practical realization. This biosensor exhibits the maximum wavelength sensitivity of 8000 nm per RIU and amplitude sensitivity of 522 per RIU with resolution 1.25×10−5 RIU and 1.92×10−5 RIU respectively in the detection range between 1.45 and 1.48. This can also show good linearity with 170 FOM. Owing to the simple design and highly sensitive nature, the proposed biosensor can be precisely applicable for biomolecular analytes detection.","PeriodicalId":127575,"journal":{"name":"2019 IEEE International Conference on Telecommunications and Photonics (ICTP)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125396683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-01DOI: 10.1109/ICTP48844.2019.9041715
Farhana Akter Mou, M. Rahman, Md. Abdullah Al Mahmud, Mohammad Tausiful Islam, M. Bhuiyan
In this article a hexagonal core structured photonic crystal fiber (PCF) is demonstrated for Terahertz (THz) wave propagation where the cladding is suspended by a number of rectangles. The geometrical design and wave guiding properties characterization are done by Finite Element Method (FEM) based comsol multiphysics software v.5.3a. The numerical outcomes of this proposed geometry exhibits an impressive performance in effective material loss (EML) reduction with a value of 0.01557cm−1 in x-polarization mode and 0.023858 cm−1 in y-polarization mode at 1THz operating frequency. Additionally, a significant difference is noticed in effective refractive index between x and y polarization mode which indicates that, this presented PCF structure carries polarization maintaining fiber (PMF) characteristics. This designed PCF also shows a flattened dispersion of ± 0.03 ps/THz/cm and high core power fraction of 47%. The existing extrusion fabrication process is very much suitable for hexagonal core structured PCF fabrication.
{"title":"Design and Characterization of a Low Loss Polarization Maintaining Photonic Crystal Fiber for THz Regime","authors":"Farhana Akter Mou, M. Rahman, Md. Abdullah Al Mahmud, Mohammad Tausiful Islam, M. Bhuiyan","doi":"10.1109/ICTP48844.2019.9041715","DOIUrl":"https://doi.org/10.1109/ICTP48844.2019.9041715","url":null,"abstract":"In this article a hexagonal core structured photonic crystal fiber (PCF) is demonstrated for Terahertz (THz) wave propagation where the cladding is suspended by a number of rectangles. The geometrical design and wave guiding properties characterization are done by Finite Element Method (FEM) based comsol multiphysics software v.5.3a. The numerical outcomes of this proposed geometry exhibits an impressive performance in effective material loss (EML) reduction with a value of 0.01557cm−1 in x-polarization mode and 0.023858 cm−1 in y-polarization mode at 1THz operating frequency. Additionally, a significant difference is noticed in effective refractive index between x and y polarization mode which indicates that, this presented PCF structure carries polarization maintaining fiber (PMF) characteristics. This designed PCF also shows a flattened dispersion of ± 0.03 ps/THz/cm and high core power fraction of 47%. The existing extrusion fabrication process is very much suitable for hexagonal core structured PCF fabrication.","PeriodicalId":127575,"journal":{"name":"2019 IEEE International Conference on Telecommunications and Photonics (ICTP)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125603907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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