A pattern effect compensator

E.A. Patent, J.J.G.M. Tol, van der, N. Calabretta, Y. Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


Degradation of high power signals is observed at bitrates comparable to the gain recovery time in Semiconductor Optical Amplifiers (SOA). The device studied here reduces this pattern effect of SOAs. It is a non-linear Mach-Zehnder interferometer with a SOA in each branch. It has an unequal input power distribution over the branches, which themselves are identical. This causes destructive interference at the output for low power inputs. Conversely, different phase shifts for high power inputs result in constructive interference. Therefore, gain saturation is observed for much higher input powers. This results in reduced pattern effects. Simulations and experiments confirm the performance.
Original languageEnglish
Title of host publicationProceedings of the 6th annual symposium of the IEEE/LEOS Benelux Chapter, 2 December 2001, Brussels, Belgium
EditorsF. Berghmans, H. Thienpont, J. Danckaert, L. Desmet
Place of PublicationBrussels, Belgium
ISBN (Print)90-5487247-0
Publication statusPublished - 2001
Event6th Annual Symposium of the IEEE/LEOS Benelux Chapter - Brussels, Belgium
Duration: 3 Dec 20013 Dec 2001
Conference number: 6


Conference6th Annual Symposium of the IEEE/LEOS Benelux Chapter


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