Theoretical analysis of the Bragg fiber spectral sensitivity in the first and second-order photonic band gaps (PBG)

Author

Milenko, Karolina ; Hu, Dora Juan Juan ; Shum, Perry Ping ; Wolinski, Tomasz R.

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2010

fDate

14-16 Dec. 2010

Firstpage

1

Lastpage

3

Abstract

We demonstrate the theoretical analysis of the propagation properties in a hollow-core Bragg fiber that can be used in bio-sensing applications. Based on the Bragg fiber we propose a resonant sensor that operates on changes in the refractive index of aqueous solution placed inside the hollow-core. We investigate the confinement loss of the TE₀₁ mode. The sensor spectral sensitivity and resolution is presented and compared in the first and second order band gap. We show that fiber sensitivity is higher in the fundamental band gap then in the second-order band gap despite higher confinement loss.

Keywords

fibre optic sensors; light propagation; optical fibre losses; photonic band gap; refractive index; Bragg fiber spectral sensitivity; aqueous solution; biosensing applications; confinement loss; first-order photonic band gaps; fundamental band gap; hollow-core Bragg fiber; propagation properties; refractive index; resonant sensor; second-order photonic band gaps; Optical fiber sensors; Optical fiber theory; Photonic band gap; Refractive index; Sensitivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics Global Conference (PGC), 2010

Conference_Location

Singapore

Print_ISBN

978-1-4244-9882-6

Type

conf

DOI

10.1109/PGC.2010.5705988

Filename

5705988