System impact of the physical length of unapodised chirped fiber Bragg gratings on dispersion compensation

Author

Rocha, Mônica L. ; Kashyap, Raman ; Souza, Rui F. ; Barros, Miriam R X ; Coral, Claudemir ; Paradisi, Alberto

Author_Institution

Fundacao CPqD, Campinas, Brazil

Volume

2

fYear

1999

fDate

1999

Firstpage

565

Abstract

It is shown, for the first time, how the amplitude of the group delay ripple, due to a pair of quasi-identical chirped fiber Bragg gratings, can be affected by a small change in the physical length of one of the gratings. It is theoretical and experimentally demonstrated that the dispersion of the gratings can be smoothened by a slight difference in length between them. The pair of gratings is arranged in a 4-port optical circulator, in a cascaded configuration. System simulations indicate that apodisation may be improved using such a scheme. This has implications for dispersion compensation in high bit-rate transmission systems

Keywords

Bragg gratings; chirp modulation; compensation; optical circulators; optical communication equipment; optical fibre dispersion; optical images; optical modulation; 4-port optical circulator; apodisation; cascaded configuration; dispersion compensation; group delay ripple amplitude; high bit-rate transmission systems; physical length; quasi-identical chirped fiber Bragg gratings; system impact; unapodised chirped fiber Bragg gratings; Bandwidth; Bragg gratings; Chirp; Delay effects; Erbium; Erbium-doped fiber amplifier; Fiber gratings; Insertion loss; Optical fiber polarization; Optical losses;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics Conference, 1999. SBMO/IEEE MTT-S, APS and LEOS - IMOC '99. International

Conference_Location

Rio de Janeiro

Print_ISBN

0-7803-5807-4

Type

conf

DOI

10.1109/IMOC.1999.866245

Filename

866245