Elliptical-hole photonic crystal fibers

Steel, M. J.; Osgood, Richard M.

doi:10.1364/ol.26.000229

Cited by 237 publications

(92 citation statements)

References 11 publications

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“…The tendency of the birefringent curve in Fig. 8 is the same as those for the elliptical-hole PCFs [5] and squeezed hexagonal lattice PCF [4] with enlarging the lattice pitch along the x-axis as wavelength λ increases in the range of [0.8, 1.6] µm, we get the lower birefringent curves as the pitches Λ x and Λ y increasing. As shown in Fig.…”

Section: Simulation Models Method Results and Discussionsupporting

confidence: 53%

“…One effective way is to replace circular air holes in the cladding with elliptical ones [3]. For the PCFs of this category, high birefringence is achieved when the bulk of the mode energy is in the fiber cladding; thus, the high birefringence is often accompanied with poor energy confinement [4][5][6]. Based on our previous works [7], in this paper, we numerically investigate a novel high-birefringence and low confinement loss index-guiding PCF using the finite element method (FEM).…”

Section: Introductionmentioning

confidence: 99%

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A Comparative Study of High Birefringence and Low Confinement Loss Photonic Crystal Fiber Employing Elliptical Air Holes in Fiber Cladding With Tetragonal Lattice

Chau

Liu

Yeh

et al. 2010

PIER B

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Abstract-We numerically compare the mode birefringence and confinement loss with four patterns (case A-D) of index-guiding photonic crystal fibers (PCF) using the finite element method. These PCFs are composed of a solid silica core surrounded by different sizes of elliptical air holes and a cladding which consist of the same elliptical air holes in fiber cladding with tetragonal lattice. The maximal modal birefringence and lowest confinement loss of our proposed case A structure at the excitation wavelength of λ = 1550 nm can be achieved at a magnitude of 5.3 × 10 −2 (which is the highest value to our knowledge) and less than 0.051 dB/km (an acceptable value less than 0.1 dB/km) with only four rings of air holes in fiber cladding, respectively. The merit of our designed PCFs is that the birefringence and confinement loss can be easily controlled by turning the pitch (hole to hole spacing) of elliptical air holes in PCF cladding.

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Section: Simulation Models Method Results and Discussionsupporting

confidence: 53%

Section: Introductionmentioning

confidence: 99%

A Comparative Study of High Birefringence and Low Confinement Loss Photonic Crystal Fiber Employing Elliptical Air Holes in Fiber Cladding With Tetragonal Lattice

Chau

Liu

Yeh

et al. 2010

PIER B

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“…In previous studies, a lot of methods to improve birefringence have been proposed, such as increasing the radius of some air holes in the cladding and using the intrinsic anisotropy of the elliptical air holes etc. (Steel and Osgood 2001). Hao et al proposed a highly birefringent index-guiding photonic crystal fiber with low confinement loss by enlarging the central row of air holes in the structure in 2013.…”

Section: Introductionmentioning

confidence: 99%

Double-cladding rectangular-lattice birefringence photonic crystal fiber with elliptical air holes

Zhang

et al. 2015

Opt Quant Electron

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We proposed a novel design of photonic crystal fiber with the characteristics of high birefringence and zero dispersion. The structure of the photonic crystal fiber is composed of the rectangular lattice with double-cladding and there is an elliptical air hole in the core of the photonic crystal fiber which has the same size with the holes of inner ring. Simulation results show that the elliptical air hole in the core can enhance the performance of mode birefringence and control the properties of chromatic dispersion at the same time. We obtain the high birefringence B = 2.1 9 10 -3 and B = 2.9 9 10 -3 at the wavelength of 1.31 and 1.55 lm respectively and the zero dispersion point at the wavelength of 1.31 lm. The proposed photonic crystal fiber with high birefringence and zero dispersion will be important in the applications of polarization maintaining transmission systems.

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“…Recent studies have been concentrated on PCFs with elliptical air holes [17][18][19][20][21][22][23][24]. These birefringent structures provide an opportunity to examine the interplay of the unusual dispersive properties of a standard PCF with strongly polarization-dependent effects.…”

Section: Introductionmentioning

confidence: 99%

A comparison of the effect of the ellipticity on the small and large solid-core PCF’s characteristics

Inci¹,

Özsoy²

2014

Open Physics

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Abstract:In this paper we study small and large solid-core PCFs with elliptical shaped air-holes for the hexagonal lattice, which were constructed by omitting one air-hole (small core) and seven air-holes (large core), respectively, and we compare their characteristics with those with circular holes. We use two types of ellipticity: vertical and horizontal. Birefringence, dispersion, and the numerical apertures of the fundamental modes are analyzed using commercial simulation software. Also, the confinement loss is obtained. The effect of ellipticity on these characteristics is investigated in detail. It is found that the type of ellipticity of the air holes affects the numerical aperture and hence confinement loss significantly, but it has no crucial effect on either the dispersion or the birefringence for the small and large core PCFs. PACS

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Elliptical-hole photonic crystal fibers

Cited by 237 publications

References 11 publications

A Comparative Study of High Birefringence and Low Confinement Loss Photonic Crystal Fiber Employing Elliptical Air Holes in Fiber Cladding With Tetragonal Lattice

A Comparative Study of High Birefringence and Low Confinement Loss Photonic Crystal Fiber Employing Elliptical Air Holes in Fiber Cladding With Tetragonal Lattice

Double-cladding rectangular-lattice birefringence photonic crystal fiber with elliptical air holes

A comparison of the effect of the ellipticity on the small and large solid-core PCF’s characteristics

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