Title :
Layered optical thin-film allpass dispersion equaliser for compensation of dispersion slope of optical fibres
Author :
Jablonski, M. ; Takushima, Y. ; Kikuchi, K. ; Tanaka, Y. ; Furuki, K. ; Sato, Kiminori ; Higashi, N.
Author_Institution :
Res. Center for Adv. Sci. & Technol., Tokyo Univ., Japan
fDate :
6/22/2000 12:00:00 AM
Abstract :
The authors propose and demonstrate novel coupled two-cavity allpass filters realised entirely as thin-film structures for dispersion slope compensation of optical fibres. The filters have centre wavelengths tunable over 15 nm. By cascading two such filters, the dispersion slope can be adjusted between -4.5 and -12.0 ps3 over a compensation bandwidth between 2.4 and 1.2 nm, respectively. A combination of two of the cascaded filters enables transmission of 1.6 ps pulse trains at 1550 nm through 60 km of dispersion-shifted fibre without waveform distortion
Keywords :
all-pass filters; compensation; equalisers; optical fibre dispersion; optical fibre filters; 1.6 ps; 1550 nm; 60 km; cascaded filters; centre wavelengths; compensation bandwidth; coupled two-cavity allpass filters; dispersion slope; layered optical thin-film allpass dispersion equaliser; optical fibres; pulse trains; thin-film structures; waveform distortion;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000818
