Title :
System impact of the physical length of unapodized chirped fiber Bragg gratings on dispersion compensation
Author :
Rocha, Mônica L. ; Kashyap, Raman ; Souza, Rui F. ; Paradisi, Alberto ; Barros, Miriam R X ; Coral, Claudemir
Author_Institution :
CPqD Found., Sao Paulo, Brazil
fDate :
1/1/2002 12:00:00 AM
Abstract :
It is shown, for the first time, how the group-delay ripple, due to a pair of identical unapodized dispersion compensating gratings, can be affected by a small change in the physical length of one of the gratings. It is theoretically and experimentally demonstrated that the ripple can be smoothened by a slight difference in length between the gratings. The pair are arranged in a four-port optical circulator in a cascading configuration. System simulations indicate that the performance of the unapodized gratings may be improved by using such a scheme. This has implications for dispersion compensation in high-speed long-haul transmission systems
Keywords :
Bragg gratings; compensation; optical circulators; optical fibre dispersion; optical fibre networks; cascading configuration; dispersion compensation; four-port optical circulator; group-delay ripple; long-haul transmission systems; optical fiber networks; physical length; unapodized chirped fiber Bragg gratings; Chirp; Gratings; High speed optical techniques; Optical fiber dispersion; Optical fiber polarization; Optical filters; Optical refraction; Optical sensors; Optical variables control; Polarization mode dispersion;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
