Effects of Core and Cladding on Optical Guidance Properties of Holey Fibers

Kim, Jeong

doi:10.5772/48280

Cited by 2 publications

(4 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the purpose of comparison of effective mode area variations in APCWs by tailoring the central air hole, another optimistic APCW is also designed with parameters of r1 = 2 m, r2 = 10 m, da = 0.2 m, dg = 0.3 m, and seven layers. Figure 2 illustrates the normalized propagation constant (  ) versus the operation wavelength () for the fundamental mode, obtained by the FDM approach taking into account the material dispersion effect [12].…”

Section: Electromagnetic Analysis Resultsmentioning

confidence: 99%

“…In this research, two numerical approaches of FDTD and FDM are addressed, with regards for extension to the analysis of holey microstructure fibers with arbitrary air-hole geometries. Each of these approaches has certain advantages [12]. Adopting the FDTD technique, the continuous electromagnetic wave in a finite volume of numerical space is sampled at distinct locations in a spatial computation lattice and at equally spaced sampling intervals in time.…”

Section: Fdtd and Fdm Algorithms For Apcw Analysesmentioning

confidence: 99%

See 1 more Smart Citation

Effective Area Control by Tailoring the Central Core Hole in Air-Core Cylindrical Photonic Crystal Waveguides

Kim¹

2019

IJAST

Self Cite

View full text Add to dashboard Cite

Air-core photonic crystal waveguides with cylindrically periodic index variations are first proposed, thereby making low-index cores. The proposed aircore cylindrical photonic crystal waveguides (APCWs) possess numerous novel properties, including large or small effective areas. Based on two computational analyses of the finite-difference time-domain and finite difference method for accurate and cross-verified results, sizing the central core provides a decent way to control the effective area. Compared to the conventional step-index or dispersionshifted optical fibers with effective areas of 50-100 m 2 in the 1.5-m wavelength range, increased effective area results are well obtained for the designed APCW with r1 = 2 m and seven layers as 199.4 m 2 at the operation wavelength of 1.3 m and 201.2 m 2 at 1.55 m. It is also confirmed that the chromatic dispersion is very small, manageable, and moreover close to zero around the operating wavelength of 1.2 m. Additionally, depending on the desired applications, investigations for reasonable and efficient designing of the APCWs with respect to superior effective core areas can lead to useful improvements related to lightwave communications.

show abstract

Section: Electromagnetic Analysis Resultsmentioning

confidence: 99%

Section: Fdtd and Fdm Algorithms For Apcw Analysesmentioning

confidence: 99%

Effective Area Control by Tailoring the Central Core Hole in Air-Core Cylindrical Photonic Crystal Waveguides

Kim¹

2019

IJAST

Self Cite

View full text Add to dashboard Cite

show abstract

“…Based on two Maxwell's curl expressions, the proposed CPCWs are investigated by first employing the FDTD method [7]. Considering that the Ex, Ey, Ez, Hx, Hy, and Hz components of electromagnetic fields are inter-related in the rectangular coordinate system, electric and magnetic wave interactions with general three-dimensional objects can be described by six coupled partial differential equations [8].…”

Section: Design and Analysis Of The Cylindrical Photonic Crystal Wavementioning

confidence: 99%

“…Similar to the FDTD employment, the FDM algorithm is reasonably applied to compute propagation characteristics such as effective refractive index, electromagnetic field profile, and effective mode area [8]. As an initial investigation, CPCWs with n1 = 1.45, r1 = 0.5 m, da = 0.2 m, ds = 0.3 m, and total 8 layers are designed and analyzed by varying the high refractive index (nc) of the core to be 1.45, 1.5, and 1.6.…”

Section: Design and Analysis Of The Cylindrical Photonic Crystal Wavementioning

confidence: 99%

Study on Electromagnetic Wave Propagation Characteristics in Cylindrical Photonic Crystal Waveguides with High-Index Cores

Kim¹

2019

IJEIC

Self Cite

View full text Add to dashboard Cite

Cylindrical photonic crystal waveguides (CPCWs) with high-index cores are first proposed and analyzed by accurate full-vector finite difference method and finite-difference time-domain approach. The high-index core can be realized by inserting materials with higher refractive index values than normal pure-silica glass, for example, carbon dioxide, Liquefied Petroleum Gas (LPG), and nitrous oxide into the CPCW. It is generally observed that the high refractive index variation is not linearly changing with the normalized propagation constant. More significant discontinuities in field distributions are also noticed at dielectric boundaries for the CPCW with lower refractive index core, compared to the CPCW with higher-index core, which reasonably means that electromagnetic energy is more tightly confined for the CPCW design with higher-index core.

show abstract

Effects of Core and Cladding on Optical Guidance Properties of Holey Fibers

Cited by 2 publications

References 13 publications

Effective Area Control by Tailoring the Central Core Hole in Air-Core Cylindrical Photonic Crystal Waveguides

Effective Area Control by Tailoring the Central Core Hole in Air-Core Cylindrical Photonic Crystal Waveguides

Study on Electromagnetic Wave Propagation Characteristics in Cylindrical Photonic Crystal Waveguides with High-Index Cores

Contact Info

Product

Resources

About