Acousto-optic-induced cladding-mode reflection in a blazed-superstructure fiber grating

Author

Fu, Ming-Yue ; Liu, Wen-Fung ; Chen, Tzu-Chiang ; Sheng, Hao-Jan

Author_Institution

Dept. of Electr. Eng., Nat. Defense Univ., Taoyuan, Taiwan

Volume

15

Issue

10

fYear

2003

Firstpage

1392

Lastpage

1394

Abstract

The coupling phenomenon between the cladding mode and the core mode in a blazed-superstructure fiber grating is experimentally demonstrated in this letter by applying both transverse and longitudinal acoustic waves. This is based on the difference between the cladding-mode wave vector and the core-mode wave vector, which is equivalent to the acoustic wave vector. By this means, a reflectivity-tunable multiwavelength switchable comb filter would be developed for the applications in fiber optics.

Keywords

acousto-optical modulation; comb filters; diffraction gratings; optical fibre cladding; optical fibre filters; reflectivity; acousto-optic-induced cladding-mode reflection; blazed-superstructure fiber grating; cladding mode; cladding-mode wave vector; core mode; core-mode wave vector; coupling phenomenon; fiber optics; longitudinal acoustic waves; reflectivity-tunable multiwavelength switchable comb filter; transverse acoustic waves; Acoustic reflection; Acoustic waves; Couplings; Fiber gratings; Frequency; Optical fiber devices; Optical filters; Propagation constant; Reflectivity; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2003.818248

Filename

1232968