Evanescent-field coupling between two parallel long-period fiber gratings

Author

Chiang, K.S. ; Ng, M.N. ; Liu, Yunqi ; Li, Shenping

Author_Institution

Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, China

Volume

2

fYear

2000

fDate

2000

Firstpage

836

Abstract

We have demonstrated experimentally the phenomenon of evanescent-field coupling between two parallel long period fibre gratings (LPFGs). Significant light energy can be tapped from a single-mode fiber using this coupling mechanism. It could form the basis of various kinds of wavelength-dependent devices, such as add/drop multiplexers and couplers. Tunability could be achieved conveniently by control of the coupling efficiency through varying the grating separation band offset

Keywords

diffraction gratings; multiplexing equipment; optical communication equipment; optical fibre couplers; add/drop multiplexers; coupling efficiency; evanescent-field coupling; fibre couplers; grating separation band offset; light energy; parallel long-period fiber gratings; single-mode fiber; wavelength-dependent devices; Bandwidth; Fiber gratings; Fixtures; Optical amplifiers; Optical coupling; Optical surface waves; Optimized production technology; Resonance; Semiconductor optical amplifiers; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society 2000 Annual Meeting. LEOS 2000. 13th Annual Meeting. IEEE

Conference_Location

Rio Grande

ISSN

1092-8081

Print_ISBN

0-7803-5947-X

Type

conf

DOI

10.1109/LEOS.2000.894114

Filename

894114