Elliptical Hollow Fiber With Inner Silver Coating for Linearly Polarized Terahertz Transmission

Author

Xiaoli Tang ; Yi Jiang ; Bangshan Sun ; Jian Chen ; Xiaosong Zhu ; Peng Zhou ; Dongping Wu ; Yiwei Shi

Author_Institution

Sch. of Inf. Sci. & Eng., Fudan Univ., Shanghai, China

Volume

25

Issue

4

fYear

2013

fDate

Feb.15, 2013

Firstpage

331

Lastpage

334

Abstract

Silver-coated elliptical hollow polycarbonate fibers for transmission of linearly polarized terahertz (THz) radiation are fabricated and characterized. A polarization ratio of 90% and a transmission loss of 0.79 dB/m at 0.65 THz are obtained for a 290-mm long fiber with major and minor inner radii of 2.42 and 1.18 mm. Modal birefringence in the order of 10^-3-10^-2 is predicted in the frequency region of 0.3-1.5 THz. We also investigate the transmission characteristics of deformed fibers and found that the fiber with a semicircle cross section could rotate the direction of a linear polarization.

Keywords

birefringence; microwave photonics; optical fibre fabrication; optical fibre losses; optical fibre polarisation; optical fibre testing; optical polymers; polymer fibres; silver; Ag; deformed fibers; frequency 0.3 THz to 1.5 THz; linear polarization; linearly polarized terahertz radiation transmission; modal birefringence; radius 1.18 mm; radius 2.42 mm; semicircle cross section; silver-coated elliptical hollow polycarbonate fibers; size 290 mm; transmission characteristics; transmission loss; Couplings; Dielectrics; Loss measurement; Optical fiber polarization; Optical fiber theory; Propagation losses; Silver; Hollow fibers; polarization; terahertz waveguides; transmission loss;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2238525

Filename

6407760