Irradiation studies on InP-based Mach Zehnder modulator

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

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

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Abstract

In this article, we discuss the results from the irradiation of InP-based Mach-Zehnder modulators (MZ) with a 24GeV/c proton beam at CERN up to various doses. The irradiated samples are characterized and compared against non-irradiated devices. The modulators are investigated for use in the Large Hadron Collider at CERN where two high energetic proton beams collide to study particle physics. The smaller particles generated in these collisions are detected by huge particle detectors with tens of millions of readout channels. The particle detectors communicate to the control room on multiple Gbps links amounting to several Tbps for the whole detector. These data rates are growing as experiments progress to higher beam collision rates. Optical conversion of the electrical data is desired at the innermost parts of the detector, compared to the present scenario where it takes place after a few meters. The detectors operate in a high radiation environment and particles passing through the circuits alter the properties of the circuits giving rise to performance issues. Optical data transmission by external modulation of a continuous wave laser is being explored as a possible solution.
Original languageEnglish
Title of host publicationProceedings of the 17th Annual Symposium of the IEEE Photonics Benelux Chapter, 29-30 Novembre 2012, Mons, Belgium
EditorsM Wuilpart, C Caucheteur, M Mura
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages291-294
ISBN (Print)978-2-8052-0184-4
Publication statusPublished - 2012

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