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A nonlinear photonic crystal fiber for liquid sensing application with high birefringence and low confinement loss
摘要： This paper presents a nonlinear Photonic Crystal Fiber (PCF) based sensor to detect liquid analytes. An extensive analysis has been presented at wide range of wavelength (0.6 μm?1.6 μm) in order to investigate the impact of some design parameters. The numerical investigation has been done using the full vector Finite Element Method (FEM). The proposed model provides an outstanding nonlinear coefficient value with high birefringence, high sensitivity, and low confinement loss. The designed model can be used in sensing and bio-sensing research and their applications.
关键词： Effective Area,Sensitivity,Nonlinearity,Confinement loss,Photonic Crystal Fiber,Birefringence
更新于2025-09-23 15:23:52
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[IEEE 2019 4th International Conference on Electrical Information and Communication Technology (EICT) - Khulna, Bangladesh (2019.12.20-2019.12.22)] 2019 4th International Conference on Electrical Information and Communication Technology (EICT) - Poisonous Chemical Sensing Using Highly Sensitive Terahertz Photonic Crystal Fiber Sensor
摘要： We propose two hollow core photonic crystal fiber (PCF) based sensors for the detection of toxic chemical like hydrogen cyanide (HCN) in the terahertz range. Because of its high level of toxicity and the potential threat it poses to humans, it is imperative to have a malleable and proficient method for HCN detection. Among the two proposed PCF sensors, the sensor which has octagonal shaped hollow core with a circular shaped air hole in the cladding provides a high relative sensitivity of 92.08% and a low confinement loss at 1.4 THz frequency.
关键词： Photonic crystal fiber,Hydrogen Cyanide,Sensitivity,Effective area,Confinement loss
更新于2025-09-23 15:21:01
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[IEEE 2019 10th International Conference on Computing, Communication and Networking Technologies (ICCCNT) - Kanpur, India (2019.7.6-2019.7.8)] 2019 10th International Conference on Computing, Communication and Networking Technologies (ICCCNT) - Hexagonal Photonic Crystal Fiber with Small Effective Area and Zero Waveguide Dispersion
摘要： This paper presents the investigation of waveguide dispersion and effective area by modifying air hole layer sizes and numbers for hexagonal photonic crystal fiber (PCF). The design and analysis of dispersion and effective area have been studied extensively for eight layers hexagonal PCF and six layers hexagonal PCF structure for a certain range of operating wavelengths. Modal analyses of the proposed geometries have been performed for wavelength from 1200 nm to 1600 nm. Achieving nearly zero dispersion and small effective area has been the main focus of this research work. Between the two structures, the six layers hexagonal PCF has shown excellent result like- zero dispersion from 1250 nm up to 1550 nm as well as large negative dispersion about -7893.33 ps/(nm.km) is achieved for 1600 nm where negative dispersion of approximately -3200 ps/(nm.km) is obtained for eight layers hexagonal PCF. The effective area is achieved around 3.9144 μm2 and 3.9469 μm2 for 1550 nm and 1575 nm respectively for six layers hexagonal is achieved around PCF. Contrariwise, the effective area 7.9481μm2 and 8.0443 μm2 for 1550 nm and 1575 nm respectively for eight layers hexagonal PCF and the proposed PCFs are expected to be useful for application oriented renowned field like nonlinear optics.
关键词： Dispersion,PCF,Effective area
更新于2025-09-16 10:30:52
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Ultra-high negative dispersion and nonlinearity based single mode photonic crystal fiber: design and analysis
摘要： In this article, we have proposed a large negative dispersion coef?cient and highly nonlinear polarization maintaining single mode square photonic crystal ?ber. The proposed design is extremely attractive for compensation of chromatic dispersion of - 1052.60 ps/(nm km) to - 2421.90 ps/(nm km) around 1340–1640 nm wavelength band. Guiding characteristics are investigated applying ?nite element method containing perfectly matched layer boundary condition. Simulation outcomes ensure the possibility of large negative dispersion coef?cient and low con?nement loss of - 2015.30 ps/(nm km) and 3.41 9 101 dB/m respectively, at 1550 nm wavelength. The proposed ?ber also exhibits highly nonlinear coef?- cient of 99.73 W-1 km-1 at the same wavelength. Moreover, V parameter assures the single mode operation of the structured ?ber over the whole band of interest. The structural diameter variation of ± 2% over the optimum value is simulated and reported to explore the practical feasibility. Besides, effective area is also presented and explained. From overall investigations, it can be reported that the proposed ?ber will be an attractive candidate in high-speed transmission system for broadband dispersion compensation, nonlinear optics and sensing applications as well.
关键词： Single mode ?ber,Ultra-high negative dispersion,Nonlinear coef?cient,Con?nement loss,Effective area,Dispersion compensating S-PCF
更新于2025-09-04 15:30:14