Impact of structural asymmetry on the efficiency of triple-core photonic crystal fiber for all-optical logic operation

Uthayakumar, T.; Raja, R. Vasantha Jayakantha; Porsezian, K.; Grelu, Philippe

doi:10.1364/josab.32.001920

Cited by 12 publications

(17 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…∆θ takes the value from 0 to 2. The output of the logic gates from the core 1 (O 1 ) and core 2 (O 2 ) are calculated from the extinction ratio XR1 (O 1 ) and XR2 (O 2 ) [11,17,19]. By choosing the suitable combinations of I 1 and I 2 as [(0;0),(0;1),(1;0),(1;1))] and their respective combinations of output (O 1 ) and (O 2 ) are used as a logic to construct the logic half adder.…”

Section: Construction Of Half Addermentioning

confidence: 99%

Logic gates based all-optical binary half adder using triple core photonic crystal fiber

Uthayakumar

Raja

2018

J. Opt.

View full text Add to dashboard Cite

This study presents the implementation of an all-optical binary logic half adder by employing triple core photonic crystal fiber (TPCF). The noteworthy feature of the present investigation is that an identical set of TPCF schemes, which demonstrated all-optical logic functions in our previous report has revealed the ability to demonstrate the successful half adder operation. The control signal (CS) power defining the extinction ratios of the output ports for the considered symmetric planar and triangular TPCFs are evaluated through numerical algorithm. Through suitable CS power and input combinations, the logic outputs are generated from extinction ratios to demonstrate the half adder operation. The results obtained display the significant influence of the input conditions on the delivery of half adder operation for different TPCF schemes considered. Furthermore, chloroform filled TPCF structures demonstrated the efficient low power half adder operation with significant figure of merit, compared to that of the silica counterpart.

show abstract

Section: Construction Of Half Addermentioning

confidence: 99%

Logic gates based all-optical binary half adder using triple core photonic crystal fiber

Uthayakumar

Raja

2018

J. Opt.

View full text Add to dashboard Cite

show abstract

“…Furthermore, a complete set of all all-optical logic operations using the highly nonlinear triple core photonic crystal fiber (TPCF) by employing the silica as well as highly nonlinear chloroform filled TPCF models has also been reported [19]. Apart from this, the crucial role of geometrical asymmetry on the delivery of a particular logic gate by the diverse asymmetric TPCF geometry has also been verified with the figure of merit [20].…”

mentioning

confidence: 86%

“…Hence, we aimed at investigating the role of a minor asymmetry of sub-microscopic scale in the coupler structures by varying its one of the light guiding core radii. This will be accomplished through examining one of our previously designed asymmetric TPCF (ATPCF) structures [20] and comparing its result by designing its symmetric counterpart. From the considered STPCF and ATPCF structures, the extinction ratio calculations are performed with suitable control signal power to realize the logic operations necessary to realize half adder functionality.…”

mentioning

confidence: 99%

Role of structural asymmetry on the delivery of all-optical logical binary half adder in an asymmetric triple core photonic crystal fiber

Uthayakumar,

Nallamuthu,

Madhu

et al. 2024

Eng. Res. Express

View full text Add to dashboard Cite

This article explores the influence of structural asymmetry on the delivery of all-optical logical binary half adder function through triple-core photonic crystal fiber. For the proposed aim, the study considers different configurations of symmetric as well as asymmetric triple-core photonic crystal fiber involving optical guiding cores arranged in a planar and triangular fashion. The role of geometrical asymmetry is investigated by considering an asymmetric triple core photonic crystal fiber with a minor variation in one of the guiding core radii. Through the extinction ratio calculations, with suitable input signal combinations and control signal power, the half adder operation is demonstrated via logic outputs. The obtained results show the significant role of geometrical asymmetry indicated by the variation in the extinction ratios for the individual configurations. However, the half adder operation is found to be robust even in the presence of considerable geometrical asymmetry, with a significant figure of merit. Apart from this, a minor shift in the control signal phase is also observed between symmetric and asymmetric configurations for delivering logic gates based on the half adder function.

show abstract

“…These MPCFs have been recently implemented in various applications for identical cores, such as couplers [18][19][20][21][22][23][24], power splitters [25][26][27][28], couplers based on high birefringence [29,30], and sensors [16,[31][32]. Non-identical cores, it can also be used in the alloptical logic operation [33], coupling [34], mode selective couplers [35], zero-differential group delay [36], high power lasers [37], polarisation splitters [38], tunable mode converter devices [39], and multiplexers and de-multiplexers [40][41][42][43][44]. In our study, we investigate the potential to change the coupling wavelength and improve the coupling efficiency between coupled cores depending on coupled seven-core PCF with identical and non-identical cores.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of strongly coupled multicore photonic crystal fibres for multiplexer and de-multiplexer applications

Mohammed

Ahmad

2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

In this study, the coupling properties of multicore photonic crystal fibers (MCPCFs) are analyzed numerically using COMSOL Multiphysics 5.5, based on the finite element method. The dependence of the coupling properties on the structure of the MCPCFs and the wavelength are investigated to realize applications such as multiplexers-demultiplexers for wavelength division multiplexing. The effective mode indexes and transverse electric field distributions of multiple cores are evaluated for different spatial configurations of identical and non-identical cores. A slight change in the central core diameter relative to adjacent cores leads to non-identical cores that lead to wavelength-dependent coupling properties, such as the coupling lengths and strength of the coefficients. The results show that the coupling lengths become longer and the strength coefficients become smaller as the wavelength decreases for non-identical cores than the identical cores. The introduction of anisotropy to all core diameters shows that the coupling lengths become longer and the strength of the coefficients become smaller as the wavelength decreases as well, and both values become lower than the ones for non-identical cores. These results prove that coupling lengths of MCPCF couplers are significantly shorter in μm compared to conventional multicore optical fiber couplers.

show abstract

Impact of structural asymmetry on the efficiency of triple-core photonic crystal fiber for all-optical logic operation

Cited by 12 publications

References 28 publications

Logic gates based all-optical binary half adder using triple core photonic crystal fiber

Logic gates based all-optical binary half adder using triple core photonic crystal fiber

Role of structural asymmetry on the delivery of all-optical logical binary half adder in an asymmetric triple core photonic crystal fiber

Numerical analysis of strongly coupled multicore photonic crystal fibres for multiplexer and de-multiplexer applications

Contact Info

Product

Resources

About