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Processing of telecommunication signals using periodically poled lithium niobate waveguides
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2010 (English)In: 2010 12th International Conference on Transparent Optical Networks (ICTON), 2010Conference paper, Published paper (Refereed)
Abstract [en]

This talk reports on processing of high-speed telecommunication signals based on cascaded quadratic nonlinearities in periodically poled lithium niobate (PPLN) waveguides. A strong pump positioned within the acceptance bandwidth of the PPLN device can interact via a cascaded nonlinear process with a second signal, thereby facilitating a switch with a broad optical bandwidth and yielding an output located within the same wavelength band as the inputs. The combination of the PPLN switch with custom-designed optical filtering for pre-conditioning of the signals gives rise to a versatile pulse processing system exhibiting important advantages in terms of compactness and environmental stability. As an example, Fig.1 describes schematically how an optical time-division multiplexed (OTDM) signal can be converted through cascaded second-harmonic generation and difference-frequency generation to a wavelength-division multiplexed (WDM) signal. The experiments that have led to this demonstration will be described in the talk. Another exciting possibility offered by the action of periodically poled waveguides relates to the coherent manipulation of the optical phase of signals. Recent demonstrations relating to phase-sensitive amplification, as well as novel applications effecting to the elimination of chirp from optical signals will also be outlined in the talk.

Place, publisher, year, edition, pages
2010.
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-82260DOI: 10.1109/ICTON.2010.5549333OAI: oai:DiVA.org:kth-82260DiVA: diva2:498056
Conference
International Conference on Transparent Optical Networks - ICTON. Munich. June 27 2010-July 1 2010
Note
QC 20120418Available from: 2012-02-11 Created: 2012-02-11 Last updated: 2012-04-18Bibliographically approved

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Gallo, Katia

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Citation style
  • apa
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  • ieee
  • modern-language-association-8th-edition
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More styles
Language
  • de-DE
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  • en-US
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  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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Output format
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  • asciidoc
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