Tunable chromatic dispersion compensator

Dubi Lever, Ady Arie

Research output: Contribution to conferencePaperpeer-review

Abstract

One of the major bottlenecks in optical telecommunication systems is chromatic dispersion. Each frequency component of an optical pulse travels at a different group velocity, hence the pulse width broadens, thereby leading to system penalties. A demand for tuneable compensators has arisen from DWDM systems with dynamic routing where the degree of pulse broadening is unknown. Another demand comes from the increased sensitivity of 40 Gb/s systems. We have suggested a novel design based on Periodically Poled Lithium Niobate (PPLN) which can compensate the dispersion of three 40 GHz channels with 200 GHz spacing in the range of 200-1000 ps/nm. Tuneability is achieved by changing the ratio between the length of the sections, where the refractive index is modulated, and the length of the phase shifters. To the best of our knowledge, this is the first publication suggesting this approach.

Original languageEnglish
Pages244-246
Number of pages3
StatePublished - 2004
Event2004 23rd IEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings - Tel-Aviv, Israel
Duration: 6 Sep 20047 Sep 2004

Conference

Conference2004 23rd IEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings
Country/TerritoryIsrael
CityTel-Aviv
Period6/09/047/09/04

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