Title :
Application of Sagnac interferometer for measuring chromatic dispersion of installed single-mode fibres
Author :
Abedin, K. Sarwar ; Hyodo, M. ; Onodera, N.
Author_Institution :
Commun. Res. Lab., Minist. of Posts & Telecommun., Kobe, Japan
fDate :
3/2/2000 12:00:00 AM
Abstract :
A novel method is described which is suitable for measuring the chromatic dispersion of installed single-mode fibres by using a modified σ-type Sagnac interferometer, which contains an off-centred phase modulator. Chromatic dispersion is measured with high resolution from the output interference fringe without requiring any fast diagnostic equipment. Measurement of the chromatic dispersion of a single-mode fibre in the wavelength range 1.5-1.58 μm is demonstrated
Keywords :
light interference; light interferometers; light interferometry; optical fibre dispersion; optical fibre testing; optical modulation; phase modulation; 1.5 to 1.58 mum; Sagnac interferometer; chromatic dispersion; installed single-mode fibres; modified σ-type Sagnac interferometer; off-centred phase modulator; output interference fringe; single-mode fibres; wavelength range;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000336
