Investigation of H/sub 2/ in- and out-diffusion impact on long-period grating devices

Author

Liu, Y. ; Zhang, L. ; Zhang, W. ; Williams, J.A.R. ; Bennion, I.

Author_Institution

Div. of Electron. Eng. & Comput. Sci., Aston Univ., Birmingham, UK

fYear

1999

fDate

28-28 May 1999

Firstpage

296

Lastpage

297

Abstract

Summary form only given. H/sub 2/-loading is an established technique to photosensitise fibres for fabricating short-period (fibre Bragg gratings FBGs) and long-period gratings (LPGs). However, the H/sub 2/-diffusion effect on the spectral response is far more significant in LPGs than in FBGs (reported previously). For a systematical investigation we have assessed this effect in LPGs for H/sub 2/ in- and out-diffusion at high- and low-pressures with long and short photosensitising time lengths.

Keywords

Bragg gratings; diffusion; hydrogen; optical fibre fabrication; optical fibre testing; H/sub 2/; H/sub 2/-diffusion; H/sub 2/-loading; fibre Bragg gratings; fibres; high-pressures diffusion; in-diffusion; long-period grating devices; long-period gratings; low-pressure diffusion; out-diffusion; photosensitising time lengths; spectral response; systematic investigation; Bragg gratings; Capacitive sensors; Elasticity; Fiber gratings; Light sources; Monitoring; Optical fiber devices; Resonance; Telecommunications; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-595-1

Type

conf

DOI

10.1109/CLEO.1999.834213

Filename

834213