Group delay ripple of cascaded Bragg grating gain flattening filters

Author

Chotard, Hélène ; Painchaud, Yves ; Mailloux, Alain ; Morin, Michel ; Trépanier, François ; Guy, Martin

Author_Institution

TeraXion, Sainte-Foy, Que., Canada

Volume

14

Issue

8

fYear

2002

Firstpage

1130

Lastpage

1132

Abstract

Chirped fiber Bragg gratings used as gain flattening filters were fabricated with peak-to-peak group delay ripple (GDR) less then 3 ps. It is shown that GDR of cascaded similar filters grows as the square root of their number. Group delay measurement is discussed and ripple quantifiers using peak-to-peak amplitude root-mean-square amplitude 100-pm window averaged amplitude and highest Fourier amplitude are compared. GDR of gain flattening filters based on chirped fiber Bragg gratings should not cause significant impairments in systems operating at 10 and 40 Gb/s.

Keywords

Bragg gratings; chirp modulation; delays; optical communication equipment; optical fibre fabrication; optical fibre filters; optical modulation; 10 Gbit/s; 3 ps; 40 Gbit/s; cascaded Bragg grating gain flattening filters; chirped fiber Bragg gratings; gain flattening filters; group delay measurement; group delay ripple; highest Fourier amplitude; peak-to-peak amplitude root-mean-square amplitude; peak-to-peak group delay ripple; ripple quantifiers; square root; window averaged amplitude; Bragg gratings; Delay; Fiber gratings; Frequency measurement; Frequency modulation; Optical fiber filters; Optical filters; Semiconductor optical amplifiers; Stimulated emission; Wavelength measurement;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2002.1021992

Filename

1021992