Design of a dual-core liquid-filled photonic crystal fiber coupler and analysis of its optical characteristics

Priya, K. Rohini; Raja, Anita; Sundar, D. Shanmuga

doi:10.1364/jot.83.000569

Cited by 19 publications

(7 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The measure of the change in phase and amplitude of a sinusoidal electromagnetic wave as it propagates in a given direction is known as the propagation constant (β) 29 , 30 . Therefore, it is defined as β=2π Re(neff)λ.…”

Section: Resultsmentioning

confidence: 99%

Agricultural soil health monitoring using photonic crystal fiber based on combined principles of surface plasmon resonance and interferometry for lead ion detection

Panigrahy,

Das,

Tripathy

2023

J. Nanophoton.

View full text Add to dashboard Cite

.To monitor the health of agricultural soil, lead (Pb2 + ) ion measurement is essential. The various sensors for lead ion detection reported in the literature earlier are either expensive or have complicated designs. This inspired us to propose a fiber optic sensor that is simple in design, less expensive, and more efficient. A photonic crystal fiber (PCF)-unclad single mode fiber (SMF)-PCF hybrid configuration makes up the suggested sensor, and the sensing mechanism is based on a synergistic application of surface plasmon resonance and interferometry. It is shown that the suggested structure is easy to use for Pb2 + ion detection, in addition to other advantages in limit of detection (LOD) and sensitivity. The proposed structure is optimized to attain a LOD of 8.32 mg / kg, which is much less than the permissible limit of Pb2 + ions permitted in healthy agricultural soil, i.e., 100 to 400 mg / kg. Additionally, a polymer that is attached atop the gold layer and to which only Pb2 + ions can adhere ensures the sensor’s specificity. To the best of our knowledge, our proposed optical fiber-based sensor design and approach adopted to detect lead ions in agricultural soil are the first of their kind.

show abstract

Section: Resultsmentioning

confidence: 99%

Agricultural soil health monitoring using photonic crystal fiber based on combined principles of surface plasmon resonance and interferometry for lead ion detection

Panigrahy,

Das,

Tripathy

2023

J. Nanophoton.

View full text Add to dashboard Cite

show abstract

“…Propagation constant P of an electromagnetic wave is the measure of alteration by the amplitude of the wave as it propagates in each direction. Therefore, the propagation constant is defined as [32,33]:…”

Section: Methodsmentioning

confidence: 99%

Photonic Crystal Fiber Sensor for Detecting Sulfuric Acid in Different Concentrations

2022

View full text Add to dashboard Cite

A high-performance photonic crystal fiber sensor for sulfuric acid detection is designed and investigated, undertaken through a full vector Finite Element Method on COMSOL Multiphysics software to establish the optical properties of effective refractive index, power fraction, relative sensitivity, confinement loss, chromatic dispersion, and propagation constant. Different aqueous sulfuric acid concentrations of 0%, 10%, 20%, 30%, and 40% were selected as the test analytes. The dimensions of two cladding rings of the hexagon- and circular-shaped air holes and a circular core hole denoted outstanding outcomes of relative sensitivity and confinement loss. At 1.1 µm optimum wavelength, 0%, 10%, 20%, 30%, and 40% sulfuric acid concentrations depict relative sensitivities of 97.08%, 97.67%, 98.06%, 98.39%, and 98.67%, respectively, and confinement losses of 1.32 × 10−12 dB/m, 4.11 × 10−12 dB/m, 1.46 × 10−12 dB/m, 6.34 × 10−12 dB/m, and 2.12 × 10−12 dB/m, respectively.

show abstract

“…The exponentially growing demand is fulfilled by optical components realized using PhCs [19]. For PIC applications, the components like splitter, coupler, multiplexer/demultiplexer, switches, modulators/demodulators, circulators, isolators, logic devices, encoders, and routers [20][21][22][23][24][25][26] were designed using PhCs and reported. Among them, the design and development of logic devices, such as gates has been increasing gradually because of their high speed signal processing, compactness and low power consumption and can also be employed to develop other logic circuits, such as half adder [27], switches [28] etc.…”

Section: Introductionmentioning

confidence: 99%

Ultra-compact all-optical logical circuits for photonic integrated circuits

Sridarshini¹,

Geerthana²,

Balaji³

et al. 2023

Laser Phys.

View full text Add to dashboard Cite

In this paper, a photonic crystal based ultra-compact Optical XOR gate followed by an optical half-subtractor is proposed. Plane wave expansion is used to evaluate the photonic bandgap of the devised structure. The output and efficiency of logical circuits can be improved by maintaining distinct thresholds for the output logic states, thereby enabling the design to operate even in low power inputs. Reliability of the structure is enhanced by retaining a threshold for the output value. The performance of the proposed circuit is examined using the Finite Difference Time Domain method. The output is considered as logic 1 when the power level exceeds 0.7 μW and logic ‘0’ if it is below 0.35 μW. The proposed logical circuit has high contrast ratio. The XOR gate has a contrast ratio of about 12.55 dB, and the half subtractor has 7.78 dB and 11.76 dB for Difference and Borrow respectively. These devices work at 1550 nm wavelength and are ultra-compact in size. The proposed structure of logic gates will be suitable for photonic integrated circuits due to its ultra-small and simple design.

show abstract

Design of a dual-core liquid-filled photonic crystal fiber coupler and analysis of its optical characteristics

Cited by 19 publications

References 19 publications

Agricultural soil health monitoring using photonic crystal fiber based on combined principles of surface plasmon resonance and interferometry for lead ion detection

Agricultural soil health monitoring using photonic crystal fiber based on combined principles of surface plasmon resonance and interferometry for lead ion detection

Photonic Crystal Fiber Sensor for Detecting Sulfuric Acid in Different Concentrations

Ultra-compact all-optical logical circuits for photonic integrated circuits

Contact Info

Product

Resources

About