Dispersion characteristics of a helically cladded step-index optical fiber: an analytical study

Singh, Umesh; Singh, O. N.; Khastgir, P.; Dey, Koustav

doi:10.1364/josab.12.001273

Cited by 42 publications

(28 citation statements)

References 5 publications

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“…The investigators have reported the implementation of this concept in the case of optical fibers [36]. As such, helical clad fibers, particularly with sheath helix patterns, fall among the category of new fiber types [48][49][50][51][52][53][54].…”

Section: Helical Clad Tapered Dielectric Optical Fibersmentioning

confidence: 99%

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Tapered Optical Fibers – An Investigative Approach to the Helical and Liquid Crystal Types

Choudhury¹

2012

Fiber Optic Sensors

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Section: Helical Clad Tapered Dielectric Optical Fibersmentioning

confidence: 99%

“…Such a concept can be implemented in the case of optical fibers taking into consideration the case of sheath helix windings [36]. A closer look at the dispersion behavior of such TOFs would be rather interesting as the helix pitch angle itself plays a major role to control the dispersion behavior of the guide.…”

Section: Introductionmentioning

confidence: 99%

Tapered Optical Fibers – An Investigative Approach to the Helical and Liquid Crystal Types

Choudhury¹

2012

Fiber Optic Sensors

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“…The expressions for field components corresponding to circular step-index fiber [11] for slow and fast wave structures can be given as follows.…”

Section: Theorymentioning

confidence: 99%

“…The analysis of helical structures generally includes waveguides under slow-wave consideration with conducting sheath and tape helixes. The implementation of this concept in the case of optical fibers has been discussed before by the investigators [11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Towards the Dispersion Relations for Dielectric Optical Fibers With Helical Windings Under Slow- And Fast-Wave Considerations - A Comparative Analysis

Kumar

Choudhury

Singh

2008

PIER

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Abstract-The paper presents the electromagnetic (EM) wave propagation in cylindrical optical fibers with helical windings under slow-and fast-wave considerations. Field components are deduced for both the cases, and also, the dispersion relations are obtained by applying the boundary conditions, as modified by the presence of conducting helical windings. Two special cases are considered corresponding to the values of the helical pitch angle as 0 • and 90 • . A comparison of the dispersion relations is presented.

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“…Preliminary analyses on helical clad fibers with circular [22,23], elliptical [24][25][26][27][28] and other types [29] of cross-sections have appeared in the literature. The studies related to the dispersion relations of such fibers have been presented in the analogy of traveling wave tubes [30], the analysis of which generally includes waveguides under slow-wave structures with conducting sheath and tape helixes.…”

Section: Introductionmentioning

confidence: 99%

On the Field Patterns of Helical Clad Dielectric Optical Fibers

Safie¹,

Choudhury²

2009

PIER

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Abstract-An analytical investigation of the lightwave propagation through dielectric optical fibers with helical clads is presented with the emphasis on their hybrid field patterns. The helical clad section is effectively realized by introducing conducting windings on the core-clad boundary. Using Maxwell's equations, a rigorous analytical approach is implemented to determine the higher order field patterns in such fibers. For simplicity, two particular values of the helix pitch angle are considered, viz. 0 • and 90 • . The nature of fields is presented in both the situations corresponding to different allowed values of the propagation constants and the fiber diameters. The radial distributions of fields corresponding to hybrid modes are presented under different situations, which exhibit the patterns like spikes. The observed smooth match of the fields at the core-clad interface validates of our analytical approach. The presence of a little higher amount of field in the fiber clad section is essentially attributed to the helical windings introduced over the fiber core. Further, the existence of considerable amount of evanescent waves in such fibers opens up the possibility of their applications in optical sensing.

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Dispersion characteristics of a helically cladded step-index optical fiber: an analytical study

Cited by 42 publications

References 5 publications

Tapered Optical Fibers – An Investigative Approach to the Helical and Liquid Crystal Types

Tapered Optical Fibers – An Investigative Approach to the Helical and Liquid Crystal Types

Towards the Dispersion Relations for Dielectric Optical Fibers With Helical Windings Under Slow- And Fast-Wave Considerations - A Comparative Analysis

On the Field Patterns of Helical Clad Dielectric Optical Fibers

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