Tunable dispersion compensators utilizing higher order mode fibers

Authors :: I. Ryazansky
Samir Ghalmi
P. Wisk
Siddharth Ramachandran
W. Reed
F.V. Dimarcello
Sethumadhavan Chandrasekhar
Man F. Yan
Source :: IEEE Photonics Technology Letters. 15:727-729
Publication Year :: 2003
Publisher :: Institute of Electrical and Electronics Engineers (IEEE), 2003.
Abstract: We demonstrate a novel tunable dispersion compensator that utilizes higher order mode fibers and switchable fiber gratings. The device is broad band and wavelength continuous, yielding a bit rate, bit format, and signal bandwidth as well as channel-spacing transparent adjustable dispersion compensator. The novel device design is free from tradeoffs between tuning range and bandwidth. The tuning range is 435 ps/nm, with a bandwidth of 30 nm. Its all-fiber configuration yields the lowest loss (average /spl sim/3.7 dB) tunable dispersion compensator reported to date. 40-Gb/s transmission tests reveal penalty-free operation.