Ultrahigh Birefringent Photonic Crystal Fiber With Ultralow Confinement Loss

Chen, Daru; Shen, Linfang

doi:10.1109/lpt.2006.890040

Cited by 130 publications

(65 citation statements)

References 10 publications

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“…Compared to the recent results of other approaches to achieve high birefringence and low loss PCFs, such as by adding many elliptical air holes in fiber core [6], by squeezed hexagonal lattice [4], by super-lattice structure PCFs [11], by decreasing stress factor [12], our proposed case A structure possesses both higher birefringence and lower loss in a broad range of wavelengths, and has the merit of ease procedures (all the same size of air holes) of fabrication. Due to the performance of case A structure is superior to those of case B-C, now we focus on the structure of case A with different parameters of Λ x and Λ y to explore high birefringence and low confinement loss of PCF.…”

Section: Simulation Models Method Results and Discussionmentioning

confidence: 92%

“…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 Discussionmentioning

confidence: 92%

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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“…Over the last two decades, photonic crystal fibers (PCFs) have been intensively studied to overcome the limitation of conventional step index optical fibers due to the design flexibility for the fiber cross section [5][6][7][8]. Various PCF designs have been explored to achieve an ultra-broadband single mode operation [9, 10], unique dispersion properties [11][12][13], high nonlinearity [14] and high birefringence [15][16][17]. Since the refractive index contrast between the core and the cladding in PCF is higher than that of conventional optical fiber, high birefringence can be easily realized in PCFs.…”

Section: Introductionmentioning

confidence: 99%

Highly Birefringent and Dispersion Compensating Photonic Crystal Fiber Based on Double Line Defect Core

Lee

Jung

et al. 2016

Journal of the Optical Society of Korea

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We propose a highly birefringent and dispersion compensating photonic crystal fiber based on a double line defect core. Using a finite element method (FEM) with a perfectly matched layer (PML), it is demonstrated that it is possible to obtain broadband large negative dispersion of about -400 to -427 ps/(nm.km) covering all optical communication bands (from O to U band) and to achieve the dispersion coefficient of -425 ps/(nm.km) at 1.55µm. In addition, the highest birefringence of the proposed PCF at 1.55 μm is 1.92 × 10 -2 and the value of birefringence from the wavelength of 1.26 to 1.8 μm (covering O to U bands) is about 1.8 × 10 -2 to 1.92 × 10. It is confirmed that from the simulation results, the confinement loss of the proposed PCF is always less than 10 -3 dB/km at 1.55 μm with seven fiber rings of air holes in the cladding.

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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

Self Cite

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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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Ultrahigh Birefringent Photonic Crystal Fiber With Ultralow Confinement Loss

Cited by 130 publications

References 10 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

Highly Birefringent and Dispersion Compensating Photonic Crystal Fiber Based on Double Line Defect Core

Single-Nanoweb Suspended Twin-Core Fiber for Optical Switching

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