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Träfflista för sökning "L773:1094 4087 ;pers:(Liu Sheng);pers:(Kakande Joseph)"

Sökning: L773:1094 4087 > Liu Sheng > Kakande Joseph

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  • Lee, Kwang Jo, et al. (författare)
  • Phase sensitive amplification based on quadratic cascading in a periodically poled lithium niobate waveguide
  • 2009
  • Ingår i: Optics Express. - 1094-4087. ; 17:22, s. 20393-20400
  • Tidskriftsartikel (refereegranskat)abstract
    • We propose and demonstrate phase-sensitive amplification based on cascaded second harmonic generation and difference frequency generation within a periodically poled lithium niobate waveguide. Excellent agreement between our numerical simulations and proof-of-principle experiments using a 3-cm waveguide device operating at wavelengths around 1550 nm is obtained. Our experiments confirm the validity and practicality of the approach and illustrate the broad gain bandwidths achievable. Additional simulation results show that the maximum gain/attenuation factor increases quadratically with input pump power, reaching a value of +/- 19.0dB at input pump powers of 33 dBm for a 3 cm-long waveguide. Increased gains/reduced powers for a fixed gain could be achieved using longer crystals.
  • Liu, Sheng, et al. (författare)
  • Phase-regenerative wavelength conversion in periodically poled lithium niobate waveguides
  • 2011
  • Ingår i: Optics Express. - 1094-4087. ; 19:12, s. 11705-11715
  • Tidskriftsartikel (refereegranskat)abstract
    • We propose and experimentally demonstrate phase-regenerative wavelength conversion in periodically poled lithium niobate waveguides, using either: a single-stage implementation based on a simultaneous combination of two cascaded second-order nonlinear effects in a single periodically poled lithium niobate waveguide, or a two-stage implementation where two separate devices are used in sequence to give rise to the same nonlinear effects. The phase regeneration properties of the proposed wavelength conversion schemes are also investigated.
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