Test of InP-based Mach Zehnder modulator for radiation hardness

D. Gajanana, M.G. Beuzekom, van, M.K. Smit, X.J.M. Leijtens

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High Energy Physics experiments at CERN in the Large Hadron Collider for example, employ a plethora of mixed-signal integrated circuits to detect particles. Digital readout architectures of such particle detector circuits are complex and demand high speed serial links. Detector circuits demand data rates of multiple Gbps per chip and several Tbps for the whole detector and this demand is ever increasing as experiments progress to higher luminosities. Possible solution to tackle the problem of high data rates is to transport data optically by external modulation of a continuous wave laser. The detector circuits have to operate in a high radiation environment and particles passing through the circuits alter the properties of the circuits giving rise to performance issues. In this work, we investigate the radiation hardness performance of InP-based Mach-Zehnder modulators. The modulator circuit is mounted on a small PCB and irradiated with a 24 GeV/c proton beam at CERN up to various fluencies. The irradiated samples are then characterized and compared against measurements of non-irradiated devices.
Original languageEnglish
Title of host publicationProceedings of the 16th Annual symposium of the IEEE Photonics Benelux Chapter, 01-02 December 2011, Ghent, Belgium
EditorsP. Bienstman, G. Morthier, G. Roelkens, xx et al.
Place of PublicationGhent, Belgium
PublisherUniversiteit Gent
ISBN (Print)978-90-85784-67-8
Publication statusPublished - 2011
Event16th Annual Symposium of the IEEE Photonics Benelux Chapter - Ghent, Belgium
Duration: 1 Dec 20112 Dec 2011
Conference number: 16


Conference16th Annual Symposium of the IEEE Photonics Benelux Chapter
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