Journal ArticleDOI
Ultrahigh birefringent polymer terahertz fiber based on a near-tie unit
Reads0
Chats0
TLDR
In this paper, a novel highly birefringent polymer terahertz (THz) fiber based on a near-tie unit, which is formed by three tangent circular air holes, is proposed.Abstract:
A novel highly birefringent polymer terahertz (THz) fiber based on a near-tie unit, which is formed by three tangent circular air holes, is proposed in this paper. The introduction of near-tie units in the fiber core can enhance asymmetry to realize high mode birefringence. The dependence of the birefringence on several parameters (radii of the air holes, unit-to-unit spacing lattice constant and lattice arrangement), the power distribution of the mode power and the relative absorption loss are investigated with a full-vector finite element method (FEM). Simulation results show that the polymer THz fiber exhibits high birefringence on a level of 10 − 2 over a wide frequency range, and an extremely large birefringence (≈5.11 × 10 − 2 at f = 1.2 THz) is obtained in a triangular lattice THz fiber. Moreover, compared with a round solid-core fiber, the THz fiber guiding loss caused by polymer material absorption can be reduced effectively as a part of the mode power is trapped in the air holes.read more
Citations
More filters
Journal ArticleDOI
Design of Highly Birefringent and Low-Loss Oligoporous-Core THz Photonic Crystal Fiber With Single Circular Air-Hole Unit
Wu Zhiqing,Shi Zhaohua,Handing Xia,Xiaoyan Zhou,Deng Qinghua,Jin Huang,Xiaodong Jiang,Weidong Wu +7 more
TL;DR: In this paper, a novel strategy to design a highly birefringent and low loss oligoporous-THz photonic crystal fiber (PCF) by introducing a single circular air-hole unit into the core area has been revealed.
Journal ArticleDOI
Highly birefringent polymer terahertz fiber with honeycomb cladding
TL;DR: In this paper, two highly birefringent polymer terahertz (THz) fibers were proposed, which were formed with honeycomb cladding and some elliptical air holes in the fiber core.
Journal ArticleDOI
Highly Birefringent Terahertz Waveguide Formed With Dual-Subwavelength Polymer Wires
TL;DR: In this paper, the authors proposed a highly birefringent terahertz (THz) waveguide, which is formed with two touching subwavelength polymer wires, and demonstrated that the waveguide can provide a high modal birerringence larger than 0.01 over a wide frequency range.
Journal ArticleDOI
Proposal for high-birefringent terahertz photonic crystal fiber with all circle air holes
TL;DR: In this article, a high-birefringent terahertz photonic crystal fiber (PCF) with all circle air holes is proposed, and the characteristics including bireringence, dispersion, and confinement loss are numerically analyzed in detail by using the finite element methods.
Journal ArticleDOI
Highly birefringent photonic crystal fiber polarization splitter made of soft glass
TL;DR: In this article, a soft glass dual core polarization splitter based on highly birefringent photonic crystal fiber (PCF) is proposed and the full vector finite element method (FEM) is employed to analyze the impacts of structural parameters on bireringence and the coupling length.
References
More filters
Book
Nonlinear Fiber Optics
TL;DR: The field of nonlinear fiber optics has advanced enough that a whole book was devoted to it as discussed by the authors, which has been translated into Chinese, Japanese, and Russian languages, attesting to the worldwide activity in the field.
Journal Article
Terahertz dielectric properties of polymers
TL;DR: In this paper, the terahertz absorption spectra, the refractive indices and the dielectric functions of various polymer materials were measured and compared, and the loss mechanism was discussed by correlating the absorption coefficients and loss tangents (tan {delta}) of the materials.
Journal ArticleDOI
Porous polymer fibers for low-loss Terahertz guiding.
TL;DR: Two designs of effectively single mode porous polymer fibers for low-loss guiding of terahertz radiation are proposed and suggested porous fibers outperform considerably the rod-in-the-air fiber designs.
Journal ArticleDOI
Teflon Photonic Crystal Fiber as Terahertz Waveguide
TL;DR: In this paper, the authors demonstrate the construction of reasonably long and non-polarization changing photonic fiber waveguide using Teflon which is a readily available and highly flexible material.