Title :
Low-coherence grating characterisation scheme
Author :
Volanthen, M. ; Geiger, H. ; Dakin, J.P.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., UK
Abstract :
The latest results of a low-coherence grating characterisation system have been presented. Two different configurations have been demonstrated, showing high accuracy measurements. The temporal resolution has been compared with the theoretically predicted value and also with that of systems using lasers. A novel 3 dimensional interpretation of a grating has been presented and the required grating parameters have been obtained from this plot. The low-coherence system appears an alternative to systems using lasers, each having their own particular advantages and disadvantages
Keywords :
diffraction gratings; 3 dimensional interpretation; broadband source; dispersion; distributed characteristics; fibre Michelson interferometer; grating interrogation; grating parameters; high accuracy measurements; linearly chirped grating; local Bragg wavelength; low-coherence grating characterisation system; low-coherence interferometry; optical coherence domain reflectometer; optical fibre gratings; reflectivity; temporal resolution; time delay; wavelength tracking;
Conference_Titel :
Optical Fibre Gratings (Digest No. 1997/037), IEE Colloquium on
Conference_Location :
London
DOI :
10.1049/ic:19970240
