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Träfflista för sökning "WFRF:(Gustavsson Johan 1974 ) "

Sökning: WFRF:(Gustavsson Johan 1974 )

  • Resultat 51-60 av 258
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51.
  • Gustavsson, Johan, 1974, et al. (författare)
  • Silicon-Integrated Hybrid-Vertical-Cavity Lasers for Life Science Applications
  • 2017
  • Ingår i: 2017 IEEE Photonics Conference. - 9781509065783
  • Konferensbidrag (refereegranskat)abstract
    • Hybrid 850-nm-wavelength vertical-cavity lasers formed by adhesively bonding AlGaAs-material to a dielectric distributed Bragg reflector on Silicon has experimentally enabled sub-mA threshold current and 25 Gb/s modulation speed. Numerical calculations estimate >0.3 mW/mA slope efficiency for in-plane SiN waveguide coupled light using an intra-cavity grating.
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52.
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55.
  • Gustavsson, Johan, 1974 (författare)
  • VCSEL Arrays for Multicore Fiber Interconnects
  • 2016
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • Space-division-multiplexing using multicore optical fibers (MCFs) opens up the possibility to massively increase the data traffic capacity of optical interconnects used in data centers and high performance computing systems. One challenge with this solution is the fabrication of a dense vertical-cavity surface-emitting laser (VCSEL) array that matches the cores of the MCF, without degrading the performance of the individual VCSELs via electrical, thermal, or optical crosstalk. Here we present the development of a hexagonal VCSEL array, with 39 µm center-to-center spacing to match the geometry of a MCF from OFS, and capable of 40 Gb/s/channel providing an aggregate capacity of 240 Gb/s.
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56.
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58.
  • Haavik, Trond, et al. (författare)
  • New business models for holistic renovation solutions of single family houses
  • 2011
  • Konferensbidrag (refereegranskat)abstract
    • Single family houses represent the biggest potential for energy savings within residential buildingsin the Nordic countries. In earlier research project [1] it highlighted that there is a missing linkbetween the single family house owner and various segregated offers of single solutions forrenovation and/or energy efficiency installations. In the two international research projectsSuccessFamiles and One Stop Shop, establishment of new business models as pilots for bridgingthis gap are now being monitored.Two of the pilots as “one stop shops”, a retailer chain in Finland and a daughter company of aNorwegian manufacturer of insulation, are described and discussed.A key issue for any business model which offers an integrated service from analysis of the houseand recommendations for measures is the trustworthiness of the supplier.As a holistic energy efficient renovation project is a “new” and unknown service to single familyhouse owner and at same time a costly investment, it is important for the suppliers to findadequate ways of communicating through each phase of the buying process. There are variouschallenges in each of the phases which have to be solved differently.
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59.
  • Haglund, Emanuel, 1988, et al. (författare)
  • 20-Gb/s Modulation of Silicon-Integrated Short-Wavelength Hybrid-Cavity VCSELs
  • 2016
  • Ingår i: IEEE Photonics Technology Letters. - 1041-1135 .- 1941-0174. ; 28:8, s. 856 - 859
  • Tidskriftsartikel (refereegranskat)abstract
    • We investigate the dynamics of silicon-integrated 850-nm-wavelength hybrid-cavity vertical-cavity surface-emitting lasers (VCSELs). The VCSELs consist of a GaAs-based half-VCSEL attached to a dielectric distributed Bragg reflector on a silicon substrate using ultra-thin divinylsiloxane-bis-benzocyclobutene adhesive bonding. A 5-µm oxide aperture diameter VCSEL, with a small signal modulation bandwidth of 11 GHz, supports data transmission at bit rates up to 20 Gb/s. The modulation bandwidth and the large signal modulation characteristics are found to be impaired by the high thermal impedance.
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60.
  • Haglund, Erik, 1985, et al. (författare)
  • 25 Gbit/s transmission over 500 m multimode fibre using 850 nm VCSEL with integrated mode filter
  • 2012
  • Ingår i: Electronics Letters. - : Institution of Engineering and Technology (IET). - 1350-911X .- 0013-5194. ; 48:9, s. 517-518
  • Tidskriftsartikel (refereegranskat)abstract
    • An integrated mode filter in the form of a shallow surface relief was used to reduce the spectral width of a high-speed 850 nm vertical-cavity surface-emitting laser (VCSEL). The mode filter reduced the RMS spectral width from 0.9 to 0.3 nm for a VCSEL with an oxide aperture as large as 5 mu m. Because of reduced effects of chromatic and modal fibre dispersion, the mode filter significantly increases the maximum error-free (bit error rate
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  • Resultat 51-60 av 258
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konferensbidrag (156)
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refereegranskat (218)
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Gustavsson, Johan, 1 ... (254)
Larsson, Anders, 195 ... (199)
Haglund, Åsa, 1976 (117)
Westbergh, Petter, 1 ... (97)
Haglund, Erik, 1985 (60)
Bengtsson, Jörgen, 1 ... (50)
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Haglund, Emanuel, 19 ... (36)
Kögel, Benjamin, 197 ... (28)
Hjort, Filip, 1991 (27)
Bergmann, Michael Al ... (24)
Roelkens, Gunther (23)
Baets, Roel G. (22)
Kumari, Sulakshna (20)
Modh, Peter, 1968 (20)
Sadeghi, Mahdad, 196 ... (19)
Wei, Yongqiang, 1975 (19)
Wernicke, Tim (19)
Kneissl, Michael (19)
Enslin, Johannes (19)
Cobet, Munise (19)
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Wang, Shu Min, 1963 (18)
Szczerba, Krzysztof, ... (18)
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Simpanen, Ewa, 1987 (16)
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