Dynamic behaviour of a Bragg grating spectrum produced by single UV-writing pulses

Author

Fonjallaz, Pierre-Yves ; Pasiskevicius, Valdas

Author_Institution

Inst. of Opt. Res., R. Inst. of Technol., Stockholm, Sweden

Volume

1

fYear

1998

fDate

20-24 Sep 1998

Firstpage

607

Abstract

Transient Bragg wavelength changes as large as 2 nm and increases of the reflectivity of about 25% are observed in a hydrogen-loaded standard telecommunications fibre during and directly after 20 ns irradiating UV-pulses. We present here an experiment aimed at obtaining an estimation of the temperature increase directly after a UV writing pulse. It consists of time-resolved measurements of the reflection and transmission changes of a CW DBR laser launched into the irradiated fibre whose wavelength is tuned to different positions with regard to the grating spectrum

Keywords

Bragg gratings; distributed Bragg reflector lasers; optical fibre fabrication; optical fibre testing; reflectivity; time resolved spectroscopy; 20 ns; Bragg grating spectrum; CW DBR laser; UV writing pulse; dynamic behaviour; grating spectrum; hydrogen-loaded standard telecommunications fibre; irradiated fibre; ns irradiating UV-pulses; optical fibre Bragg grating fabrication; reflection changes; reflectivity; single UV-writing pulses; temperature increase; time-resolved measurements; transient Bragg wavelength changes; transmission changes; Bragg gratings; Distributed Bragg reflectors; Fiber lasers; Optical reflection; Position measurement; Reflectivity; Telecommunication standards; Temperature; Wavelength measurement; Writing;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Communication, 1998. 24th European Conference on

Conference_Location

Madrid

Print_ISBN

84-89900-14-0

Type

conf

DOI

10.1109/ECOC.1998.732745

Filename

732745