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Träfflista för sökning "WFRF:(Sohlström Hans 1952 ) srt2:(2005-2009)"

Sökning: WFRF:(Sohlström Hans 1952 ) > (2005-2009)

  • Resultat 1-9 av 9
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1.
  • Barrios, Carlos Angulo, et al. (författare)
  • Demonstration of slot-waveguide structures on silicon nitride / silicon oxide platform
  • 2007
  • Ingår i: Optics Express. - 1094-4087. ; 15:11, s. 6846-6856
  • Tidskriftsartikel (refereegranskat)abstract
    • We report on the first demonstration of guiding light in vertical slot-waveguides on silicon nitride/silicon oxide material system. Integrated ring resonators and Fabry-Perot cavities have been fabricated and characterized in order to determine optical features of the slot-waveguides. Group index behavior evidences guiding and confinement in the low-index slot region at O-band (1260-1370nm) telecommunication wavelengths. Propagation losses of < 20 dB/cm have been measured for the transverse-electric mode of the slot-waveguides.
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  • Barrios, Carlos, et al. (författare)
  • Integrated Si3N4/SiO2 Slot-Waveguide Microresonators
  • 2007
  • Konferensbidrag (refereegranskat)abstract
    • We demonstrate slot-waveguide microring resonators and Fabry-Perot microcavities on Si3N4/SiO2. Characterization indicates guiding and confinement in the waveguide nanometric-size low-index slot region at O-band (1260-1370nm) wavelengths. We measured propagation losses <20 dB/cm.
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  • Maire, Guillaume, et al. (författare)
  • High efficiency silicon nitride surface grating couplers
  • 2008
  • Ingår i: Optics Express. - 1094-4087. ; 16:1, s. 328-333
  • Tidskriftsartikel (refereegranskat)abstract
    • High efficiency surface grating couplers for silicon nitride waveguides have been designed, fabricated, and characterized. Coupling efficiencies exceeding 60 % are reported at a wavelength of 1.31 mu m, as well as angular and wavelength -3 dB tolerances of 4 and 50 nm, respectively. When the wavelength is increased from 1310 nm to 1450 nm the coupling efficiency progressively decreases but remains above 20 % at 1450 nm. The influence of the duty ratio of the grating has also been investigated: maximum coupling efficiency was obtained at 50 % duty ratio.
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  • Vivien, Laurent, et al. (författare)
  • A high efficiency silicon nitride grating coupler
  • 2007
  • Ingår i: 2007 4th IEEE International Conference on Group IV Photonics. - : IEEE. - 9781424409341 ; , s. 157-159
  • Konferensbidrag (refereegranskat)abstract
    • The experimental demonstration of a high efficiency silicon nitride grating coupler is reported for wavelengths from lambda=1.25 to 1.45 mu m for TE polarization. At the resonant angle, a coupling efficiency higher than 60% has been measured.
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  • Resultat 1-9 av 9

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