A Slot Micro/Nano Fiber With Elliptical Low-Index Core

Author

Zhang, Wenfu ; Mu, Jian-Wei ; Huang, Wei-Ping ; Zhao, Wei

Author_Institution

State Key Lab. of Transient Opt. & Photonics, Xi´´an Inst. of Opt. & Precision Mech., Xi´´an, China

Volume

4

Issue

5

fYear

2012

Firstpage

1610

Lastpage

1621

Abstract

A slot micro/nano optical fiber with elliptical low-index core, referred to as the elliptical-slot micro/nano fiber (ESMNF), is studied systematically in great detail in this paper. It is demonstrated that the ESMNF can confine most of the light in the low-index region and hence lead to large field enhancement. Benefiting from the large low-index power confinement factor and the field enhancement, the ESMNF also yields significant nonlinearity enhancement by the proper selection of materials. In addition, large birefringence between the two fundamental polarized modes is observed, due to the breakage of the circular symmetry for the core. The nonlinearity and low-index confinement properties of a more practical elliptical-slot embedded suspended microstructure fiber are also studied.

Keywords

birefringence; micro-optics; nanofibres; nanophotonics; nonlinear optics; optical fibre polarisation; refractive index; ESMNF; birefringence; core circular symmetry; elliptical low-index core; field enhancement; fundamental polarized modes; microstructure fiber; power confinement factor; slot microfiber; slot nanofiber; Indexes; Materials; Optical fibers; Optical refraction; Optical variables control; Refractive index; Fiber optics; fiber design and fabrication; fibers; nonlinear optics;

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2012.2212241

Filename

6269981