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Optical-CDMA in InP
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2007 (English)In: IEEE Journal of Selected Topics in Quantum Electronics, ISSN 1077-260X, E-ISSN 1558-4542, Vol. 13, no 5, 1497-1507 p.Article in journal (Refereed) Published
Abstract [en]

This paper describes the InP platforms for photonic integration and the development on these platforms of an optical code division multiple access (O-CDMA) system for local area networks. We demonstrate three building blocks of this system: an optical pulse source, an encoder/decoder pair, and a threshold detector. The optical pulse source consists of an integrated colliding pulse-mode laser with nearly transform-limited 10 Gb/s pulses and optical injection locking to an external clock for synchronization. The encoder/decoder pair is based on arrayed waveguide gratings. Bit-error-rate measurements involving six users at 10 Gb/s showed error-free transmission, while O-CDMA codes were calibrated using frequency resolved optical gating. For threshold detection after the decoder, we compared two Mach-Zehnder interferometer (MZI)-based optical thresholding schemes and present results on a new type of electroabsorber-based MZI.

Place, publisher, year, edition, pages
2007. Vol. 13, no 5, 1497-1507 p.
Keyword [en]
arrayed-waveguide gratings (AWG), cross-correlation frequency-resolved optical gating (XFROG), InP platform, Mach-Zehnder interferometer (MZI), optical code division multiple access (O-CDNU), optical thresholding, photonic integrated circuit, mode-locked laser, modelocked semiconductor-lasers
URN: urn:nbn:se:kth:diva-17062DOI: 10.1109/jstqe.2007.902854ISI: 000250374000018ScopusID: 2-s2.0-35349028970OAI: diva2:335105
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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Lourdudoss, Sebastian
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Microelectronics and Information Technology, IMIT
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