Specialty Fibers Designed by Photonic Crystals

Nozhat, Najmeh; Granpayeh, Nosrat

doi:10.2528/pier09092309

Cited by 45 publications

(26 citation statements)

References 32 publications

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“…Photonic crystal fibers (PCFs) have attracted a lot of research attention due to many possibilities and promising applications in communication and sensing [1,2]. Based on the design flexibility and the large index contrast, high birefringence can be easily realized in PCFs.…”

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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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: 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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“…However, much of the optical switches are still predominantly performed electrically in recent applications. With the emergence and development of the microstructure fiber (MSF) which has shown a great success to achieve unique properties such as high birefringence [28][29][30][31][32][33][34][35][36], flattened dispersion [37][38][39][40], large negative dispersion [41,42], high nonlinearity [43,44], endless single mode [45] and so on, there emerges a new opportunity for the exploration of optical switching technology that it is possible to make the optical fiber be an optical switch. Recently, a type of nanomechanical optical fiber [46] has been proposed and demonstrated, which has two fiber cores independently suspended within the fiber.…”

Section: Introductionmentioning

confidence: 99%

Single-Nanoweb Suspended Twin-Core Fiber for Optical Switching

Ma¹,

Chen²

2013

PIER M

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Abstract-A novel suspended twin-core fiber (STCF) based on a single-nanoweb structure for optical switching is proposed. The single-nanoweb structure of the STCF is an ultrathin glass membrane (nanoweb) suspended in air and adhered to the inner ring of a glass fiber capillary, which substantially provides a built-in transducing mechanism to boost the pressure-induced index change in the fiber core region of the STCF. Two fiber cores locate symmetrically in the center of the nanoweb, resulting to the mode coupling for the guiding light in the STCF. Optical and mechanical properties of the proposed STCFs under different force are numerically investigated. Optical switching based on the STCF is achieved by controlling the force applied to the STCF. Our simulations show that optical switching from one core to the other in the STCF is realized based on a low switching force of only 8 N. The performances of the optical switching based on STCFs with different structure parameters are presented.

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“…PCs have many interesting applications such as omnidirectional re ector [3], lters, optical switches, light-emitting diodes [4], bers [5], waveguides [6] etc. When the light wave is incident on PCs, they face with number of dielectric layers with di erent dielectric constants [7].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Band Gap Width in Ternary 1D Photonic Crystal with Left-Handed Layer

Zare

Gharaati

2014

Acta Phys. Pol. A

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In this paper, we investigate the variation of band gap width in a ternary 1D photonic crystal with a left--handed layer versus variation of thicknesses and refractive index of second layers. We study these variations in two states, normal and oblique incidents for both TE and TM polarizations. We observe that the variations of band gap width versus thickness of layers are sensitive to the refractive index of second layers. For oblique incident both of variations are shifted towards the large/small frequencies by increasing the incident angles in TE/TM polarization, respectively.

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Specialty Fibers Designed by Photonic Crystals

Cited by 45 publications

References 32 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

Single-Nanoweb Suspended Twin-Core Fiber for Optical Switching

Investigation of Band Gap Width in Ternary 1D Photonic Crystal with Left-Handed Layer

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