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Low-power spectral phase correlator using periodically poled LiNbO3 waveguides

  • Z. Zheng*
  • , A. M. Weiner
  • , K. R. Parameswaran
  • , M. H. Chou
  • , M. M. Fejer
  • *Corresponding author for this work
  • Nokia
  • Purdue University
  • Stanford University
  • Tellium Inc.

Research output: Contribution to journalArticlepeer-review

Abstract

We report a novel optical spectral phase correlation scheme for coded ultrashort pulses based on the use of long periodically poled lithium niobate second harmonic generation waveguides. Second harmonic efficiency as high as 50 %/pJ was obtained, which allowed us to demonstrate nonlinear detection of individual pulses at 0.25 pJ input energies over a 500-MHz detection bandwidth with >50 : 1 signal-to-noise ratio. These results offer the possibility of sub-pJ real-time operation of such devices as nonlinear receivers in ultrashort-pulse optical code-division multiple-access (CDMA) networks.

Original languageEnglish
Pages (from-to)376-378
Number of pages3
JournalIEEE Photonics Technology Letters
Volume13
Issue number4
DOIs
StatePublished - Apr 2001
Externally publishedYes

Keywords

  • Code division multiaccess
  • Nonlinear optics
  • Optical fiber communication
  • Optical propagation in nonlinear media
  • Optical pulse shaping
  • Optical signal processing
  • Optical waveguide components

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