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Träfflista för sökning "swepub ;pers:(Larsson Anders);pers:(Larsson Anders 1957);pers:(Haglund Åsa 1976)"

Sökning: swepub > Larsson Anders > Larsson Anders 1957 > Haglund Åsa 1976

  • Resultat 41-50 av 83
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41.
  • Kumari, Sulakshna, et al. (författare)
  • Integration of GaAs-based VCSEL array on SiN platform with HCG reflectors for WDM applications
  • 2015
  • Ingår i: Proceedings of SPIE - The International Society for Optical Engineering. - : SPIE. - 0277-786X .- 1996-756X. - 9781628414622 ; 9372, s. Art. no. 93720U-
  • Konferensbidrag (refereegranskat)abstract
    • We present a GaAs-based VCSEL structure, BCB bonded to a Si3N4 waveguide circuit, where one DBR is substituted by a free-standing Si3N4 high-contrast-grating (HCG) reflector realized in the Si3N4 waveguide layer. This design enables solutions for on-chip spectroscopic sensing, and the dense integration of 850-nm WDM data communication transmitters where individual channel wavelengths are set by varying the HCG parameters. RCWA shows that a 300nm-thick Si3N4 HCG with 800nm period and 40% duty cycle reflects strongly (
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42.
  • Kögel, Benjamin, 1979, et al. (författare)
  • Integrated MEMS-tunable VCSELs for reconfigurable optical interconnects
  • 2012
  • Ingår i: Proceedings of SPIE - The International Society for Optical Engineering. - : SPIE. - 0277-786X .- 1996-756X. - 9780819489197 ; 8276, s. Article Number: 82760Q-
  • Konferensbidrag (refereegranskat)abstract
    • A simple and low-cost technology for tunable vertical-cavity surface-emitting lasers (VCSELs) with curved movable micromirror is presented. The micro-electro-mechanical system (MEMS) is integrated with the active optical component (so-called half-VCSEL) by means of surface-micromachining, using a reflown photoresist droplet as sacrificial layer. The technology is demonstrated for electrically pumped, short-wavelength (850nm) tunable VCSEts. Fabricated devices with 10 mu m oxide aperture are singlemode with sidemode suppression >35 dB, tunable over 24 mit with output power up to 0.5 mW, and have a beam divergence angle
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43.
  • Kögel, Benjamin, 1979, et al. (författare)
  • Integrated MEMS-Tunable VCSELs Using a Self-Aligned Reflow Process
  • 2012
  • Ingår i: IEEE Journal of Quantum Electronics. - 0018-9197 .- 1558-1713. ; 48:2, s. 144-152
  • Tidskriftsartikel (refereegranskat)abstract
    • A simple microelectromechanical systems technology for wafer-scale integration of tunable vertical-cavity surface-emitting lasers (VCSELs) is presented. The key element is a self-aligned reflow process to form photoresist droplets, which serve as sacrificial layer and preform for a curved micromirror. Using a 3-D electromagnetic model, the half-symmetric cavity is optimized for singlemode emission. The technology is demonstrated for electrically pumped, short-wavelength (850 nm) tunable VCSELs, but is transferable to other wavelengths and material systems. Fabricated devices with 10 mu m large current aperture are singlemode and tunable over 24 nm. An improved high-speed design with reduced parasitic capacitance enables direct modulation with 3dB-bandwidths up to 6 GHz and data transmission at 5Gbit/s. Small signal analysis shows that the intrinsic parameters (resonance frequency and damping) are wavelength dependent through the differential gain.
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44.
  • Kögel, Benjamin, 1979, et al. (författare)
  • Integrated MEMS-tunable VCSELs with high modulation bandwidth
  • 2011
  • Ingår i: Electronics Letters. - : Institution of Engineering and Technology (IET). - 1350-911X .- 0013-5194. ; 47:13, s. 764-756
  • Tidskriftsartikel (refereegranskat)abstract
    • The modulation bandwidth of micromachined tunable VCSELs is typically limited by the parasitic capacitance associated with the large mesa platform for the movable mirror. Presented is a simple technology for wafer-scale integration of tunable VCSELs with low mesa capacitance and high modulation bandwidth. Small signal measurements show a 3dB bandwidth of up to 6 GHz over a tuning range of 18 nm. Digital modulation is demonstrated with error-free data transmission at 5 Gbit/s and eye diagrams at 10 Gbit/s.
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45.
  • Kögel, Benjamin, 1979, et al. (författare)
  • Integrated Tunable VCSELs With Simple MEMS Technology
  • 2010
  • Ingår i: Semiconductor Laser Conference (ISLC), 2010 22nd IEEE International. - 0899-9406. - 9781424456833
  • Konferensbidrag (refereegranskat)abstract
    • A simple MEMS technology for wafer-scale fabrication of tunable VCSELs is presented. Reflown photo-resist droplets serve as preform for making curved movable micro-mirrors. First devices show a tuning range of 15 nm with mW-output power.
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46.
  • Kögel, Benjamin, 1979, et al. (författare)
  • Short-wavelength tunable VCSELs
  • 2009
  • Ingår i: European Semiconductor Laser Workshop (ESLW).
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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47.
  • Kögel, Benjamin, 1979, et al. (författare)
  • Singlemode tunable VCSELs with integrated MEMS technology
  • 2011
  • Ingår i: European Conference on Laser and Electro-Optics (CLEO/Europe).
  • Konferensbidrag (refereegranskat)abstract
    • A simple MEMS technology for wafer-scale integration of short-wavelength tunable VCSELs is presented. Using a 3D model the half-symmetric cavity is optimized for singlemode emission from 10 μm large apertures over 12 nm tuning range.
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48.
  • Larsson, Anders, 1957, et al. (författare)
  • Advances in VCSELs for Communication and Sensing
  • 2010
  • Ingår i: 22nd IEEE International Semiconductor Laser Conference Digest. - 0899-9406. - 9781424456826 ; , s. 4-5
  • Konferensbidrag (refereegranskat)abstract
    • Recent advances in VCSELs for communication and sensing are reviewed, emphasizing the development of high speed VCSELs for datacom systems and high power single-mode VCSELs for sensing applications requiring high spectral purity and coherence.
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49.
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  • Resultat 41-50 av 83
Typ av publikation
konferensbidrag (48)
tidskriftsartikel (35)
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refereegranskat (68)
övrigt vetenskapligt/konstnärligt (15)
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Gustavsson, Johan, 1 ... (76)
Westbergh, Petter, 1 ... (54)
Kögel, Benjamin, 197 ... (26)
Haglund, Erik, 1985 (23)
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Modh, Peter, 1968 (10)
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Debernardi, P. (8)
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Jedrasik, Piotr, 195 ... (6)
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Joel, A. (5)
Fattal, David (5)
Sorin, W. V. (5)
Wang, Shu Min, 1963 (4)
Sadeghi, Mahdad, 196 ... (4)
Amann, M. C. (4)
Vukusic, Josip, 1972 (4)
Agrell, Erik, 1965 (3)
Stattin, Martin, 198 ... (3)
Zhao Ternehäll, Huan ... (3)
Baveja, P. P. (3)
Gierl, Christian (3)
Meissner, Peter (3)
Hopfer, Friedhelm (3)
Bimberg, Dieter (3)
O'Reilly, E. P. (3)
Haglund, Emanuel, 19 ... (3)
Tan, Michael (3)
Sun, Jie, 1977 (2)
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Yurgens, Avgust, 195 ... (2)
Olsson, Bengt-Erik, ... (2)
White, I. H. (2)
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Healy, S. B. (2)
Söderberg, Emma, 198 ... (2)
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Chalmers tekniska högskola (83)
Linköpings universitet (1)
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Engelska (83)
Forskningsämne (UKÄ/SCB)
Teknik (71)
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