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Prof. dr. ir. Bart Dhoedt 

This person left the group in 2000.

Affiliation: UGent - INTEC
PhD Thesis: Bart Dhoedt, Theoretische en Experimentele Studie van Vrije-Ruimte Optische Interconnecties op basis van Diffractieve lensrijen, Theoretical and experimental study of free-space optical interconnections based on diffractive lens arrays, 9/1995
BartDhoedt

Patents

Publications (64)

    International Journals

  1. T. Coosemans, A. Van Hove, R. Bockstaele, K. Vandeputte, L. Vanwassenhove, B. Dhoedt, R. Baets, P. Van Daele, J. Van Koetsem, MT (TM)-compatible connectorisation of VCSEL and RCLED arrays to plastic optical fibre ribbon for low cost parallel datalinks, Materials Science in Semiconductor Processing, p.475-480 (2000).
  2. G. Flamand, K. De Mesel, I. Christiaens, B. Dhoedt, W. Hunziker, A. Kalmar, R. Baets, P. Van Daele, W. Leeb, InP-based PIC for an optical phased array antenna at 1.06 mm, IEEE Photonics Technology Letters, 12(7), p.876-878 (2000)  Download this Publication (51KB).
  3. P. Bienstman, B. Demeulenaere, B. Dhoedt, R. Baets, Simulation results of transverse-optical confinement in airpost, regrown, and oxidized vertical-cavity surface-emitting laser structures, J. Opt. Soc. Am. B, 16(11), p.2055-2059 (1999)  Download this Publication (406KB).
  4. R. Bockstaele, T. Coosemans, C. Sys, L. Vanwassenhove, A. Van Hove, B. Dhoedt, I. Moerman, P. Van Daele, R. Baets, R. Annen, H. Melchior, J. Hall, P.L. Heremans, M. Brunfaut, J. Van Campenhout, Realization and characterization of 8 x 8 resonant cavity LED arrays mounted onto CMOS drivers for POF-based interchip interconnections, IEEE Journal on Selected Topics in Quantum Electronics, 5(2), p.224-235 (1999)  Download this Publication (1.1MB).
  5. V. Baukens, G. Verschaffelt, P. Tuteleers, P. Vynck, H. Ottevaere, M. Kufner, S. Kufner, I. Veretennicoff, R. Bockstaele, A. Van Hove, B. Dhoedt, R. Baets, H. Thienpont, Performances of optical multi-chip-module interconnects: comparing guided-wave and free-space pathways, Journal of Optics A - Pure and Applied Optics, Special Isuue on Optics in Computing, 1(2), p.255-261 (1999).
  6. R. Bockstaele, A. Van Hove, T. Coosemans, C. Sys, I. Moerman, B. Dhoedt, R. Baets, P. Van Daele, J. Van Koetsem, L. Van der Torren, Microcavity LED-based parallel data link using small-diameter (125 um) plastic optical fibres, Journal of Optics A - Pure and Applied Optics, Special Isuue on Optics in Computing, 1(2), p.233-236 (1999).
  7. B. Demeulenaere, P. Bienstman, B. Dhoedt, R. Baets, Detailed study of AlAs-oxidized apertures in VCSEL cavities for optimized modal performance, IEEE Journal of Quantum Electronics, 35(3), p.358-367 (1999)  Download this Publication (295KB).
  8. R. Bockstaele, C. Sys, J. Blondelle, B. Dhoedt, I. Moerman, P. Van Daele, P. Demeester, R. Baets, Resonant cavity LED's optimized for coupling to polymer optical fibers, IEEE Photonics Technology Letters, 11(2), p.158-160 (1999)  Download this Publication (195KB).
  9. S. Goeman, S. Boons, B. Dhoedt, K. Vandeputte, K. Caekebeke, P. Van Daele, R. Baets, First demonstration of highly reflective and highly polarization selective diffraction gratings (GIRO-Gratings) for long-wavelength VCSEL's, IEEE Photonics Technology Letters, 10(9), p.1205-1207 (1998)  Download this Publication (74KB).
  10. J. Stiens, W. Ranson, R. Cottam, C. De Tandt, R. Vounckx, V. Kotov, G. Shkerdin, B. Dhoedt, R. Baets, Experimental characterization of reactive ion etched germanium diffraction gratings at 10.6 µm, Appl. Phys. Lett., 69(23), p.3453-3455 (1996).
  11. B. Dhoedt, P. De Dobbelaere, J. Blondelle, P. Van Daele, P. Demeester, R. Baets, Monolithic integration of diffractive lenses with LED-arrays for board-to-board free space opical interconnect, IEEE Journal of Lightwave Technology, 13(6), p.1065-1073 (1995)  Download this Publication (841KB).
  12. B. Dhoedt, P. De Dobbelaere, L. Buydens, R. Baets, B. Houssay, Optical free-space board-to-board interconnect : options for optical pathways, Applied Optics, 31(26), p.5508-5516 (1992).
    Book / Book Chapter

  1. R. Baets, B. Dhoedt, Where does optical interconnect make sense ? A review of ESPRIT-OLIVES demonstrators, Chapter 15 of "Technologies Matérielles futures de l'ordinateur", p.157-165 (1994).
    International Conferences

  1. G. Flamand, K. De Mesel, I. Christiaens, B. Dhoedt, W. Hunziker, A. Kalmar, R. Baets, P. Van Daele, W. Leeb, InP-based PIC for an optical phased array antenna at 1.06 mm, IPRM '00, United States, p.25-28 (2000).
  2. A. Van Hove, K. Vandeputte, K. Naessens, B. Dhoedt, R. Baets, P. Van Daele, MT compatible red VCSEL module for parallel optical interconnections, Proceedings op SPIE Optoelectronic Interconnects VII; Photonics Packaging and Integration II, 3952, United States, p.134-143 (2000).
  3. D. Delbeke, K. Vandeputte, R. Baets, R. Bockstaele, B. Dhoedt, I. Moerman, P. Van Daele, S. Verstuyft, Holographically defined grating assisted Micro-cavity light emitting diodes, Proceedings Symposium IEEE/LEOS Benelux Chapter, 1999, Belgium, p.159-162 (1999).
  4. F. Berghmans, S. Coenen, B. Brichard, F. Vos, M.C. Decréton, G. Verschaffelt, A. de la Fuente, I. Veretennicoff, H. Thienpont, R. Bockstaele, P. Bienstman, C. Sys, B. Dhoedt, I. Moerman, R. Baets, P. Van Daele, J. Jönsson, Prelimimary results on high total dose testing of semiconductor photonic sources: a comparison of VCSELs and resonant cavity LEDs, SPIE Conference on Photonics for Space Environments VI, 3440, United States, p.47-56 (1999)  Download this Publication (396KB).
  5. P. Bienstman, B. Demeulenaere, B. Dhoedt, R. Baets, Rigorous optical VCSEL modelling based on vectorial eigenmode expension, 1999 Digest of the LEOS Summer Topical Meetings (invited), United States, p.35-36 (1999).
  6. D. Delbeke, R. Baets, B. Dhoedt, R. Bockstaele, I. Moerman, P. Van Daele, Electrically pumped photonic crystal micro-cavity light emitting diodes, 1999 Digest of the LEOS Summer Topical Meetings, United States, p.71-72 (1999).
  7. A. Van Hove, T. Coosemans, R. Bockstaele, K. Vandeputte, L. Vanwassenhove, B. Dhoedt, R. Baets, P. Van Daele, J. Van Koetsem, L. Van den Torren, Direct MT(TM)-compatible connectorisation of VCSEL and LED-arrays to plastic optical fiber ribbon for low cost parallel datalinks, 49th Electronic Components & Technology Conference 1999, United States, p.1096-1102 (1999).
  8. L. Vanwassenhove, R. Baets, B. Dhoedt, P. Van Daele, P. Heremans, J. Van Campenhout, J. Hall, R. Michalzik, H. Melchior, H. Thienpont, R. Vounckx, A. Neyer, D.C. O'Brien, J. Van Koetsem, F.-T. Lentes, D. Litaize, Technologies for two-dimensional optical interconnect between CMOS IC's, Proceedings of the 9th European Conference on Integrated Optics and Technical Exhibition (ECIO 99) (invited), Italy, p.423-428 (1999).
  9. K. De Mesel, I. Moerman, R. Baets, B. Dhoedt, P. Van Daele, J. Stulemeijer, Spot size converters for low cost PICs, Proceedings of the 9th European Conference on Integrated Optics and Technical Exhibition (ECIO 99), Italy, p.253-258 (1999).
  10. P. Bienstman, W. Bogaerts, R. Bockstaele, D. Delbeke, S. Goeman, B. Depreter, J. Derluyn, C. Sys, L. Vanwassenhove, B. Dhoedt, I. Moerman, P. Van Daele, R. Baets, Microcavity and PBG-related activities at the University of Gent, COST 268 Wavelenght Scale Photonic Components for Telecommunications (Workshop), Sweden, (1999).
  11. R. Bockstaele, T. Coosemans, C. Sys, L. Vanwassenhove, A. Van Hove, B. Dhoedt, I. Moerman, P. Van Daele, R. Baets, Realisation of highly efficient and high-speed resonant cavity LED for coupling to plastic optical fibres, SPIE conference on Light-emitting Diodes : Research, Manufactering and Applications III, 3621, United States, p.221-229 (1999).
  12. B. Dhoedt, R. Baets, I. Moerman, P. Van Daele, P. Demeester, T. Coosemans, A. Van Hove, R. Bockstaele, C. Sys, L. Vanwassenhove, Microcavity LEDs coupled to POF arrays for parallel optical interconnects, Conference Proceedings of LEOS'98, The 11th Annual Meeting (invited), 2, United States, p.331-332 (1998).
  13. K. De Mesel, C. Sys, K. Caekebeke, S. Verstuyft, B. Dhoedt, I. Moerman, P. Van Daele, R. Baets, Wet lateral oxidtion of AlGaAs for passive and active guided wave components, Proc. of the Third Annual Symposium of the IEEE/LEOS Benelux Chapter, Belgium, p.109-112 (1998).
  14. S. Goeman, K. Vandeputte, B. Dhoedt, P. Van Daele, R. Baets, J. Boucart, C. Fortin, C. Starck, A. Pinquier, J. Jacquet, N. Chitica, M. Hammar, GIRO-grating assisted optically pumped 1.55mm VCSEL with metamorphic GaAs/AlGaAs top mirror, Proc. of the Third Annual Symposium of the IEEE/LEOS Benelux Chapter, Belgium, p.153-156 (1998).
  15. R. Bockstaele, C. Sys, S. Verstuyft, L. Vanwassenhove, B. Dhoedt, I. Moerman, P. Van Daele, R. Baets, Flip chip mounted substrate-removed 850nm bottom-emitting 8x8 MCLED arrays with selectively oxidised current windows, Proc. of the Third Annual Symposium of the IEEE/LEOS Benelux Chapter, Belgium, p.97-100 (1998).
  16. T. Coosemans, A. Van Hove, R. Baets, P. Van Daele, B. Dhoedt, Parallel optical data communication using 125mm plasti optical fibres: End facet termination and couling alignment using MTTM ferrules, Proc. of the 7th International Optical Fibres Conference '98 (POF'98), Germany, p.143-146 (1998).
  17. R. Bockstaele, B. Depreter, J. Blondelle, B. Dhoedt, I. Moerman, P. Demeester, P. Van Daele, R. Baets, High efficiency microcavity LEDs, CLEO/Europe'98 Conference on Lasers and Electro-Optics-Europe (invited), CWA(1), United Kingdom, p.141 (1998).
  18. R. Baets, B. Dhoedt, P. Heremans, S. Paineau, S. Mennerat, Technologies for optical interconnects between CMOS IC's, Optics in Computing OC'98 (invited), 3490, Belgium, p.546-549 (1998).
  19. V. Baukens, G. Verschaffelt, P. Tuteleers, P. Vynck, H. Ottevaere, M. Kufner, S. Kufner, I. Veretennicoff, R. Bockstaele, B. Dhoedt, R. Baets, H. Thienpont, Performance simulations of optical multi-chip-module interconnects: comparing guided-wave and free-space pathways, Optics in Computing OC'98, 3490, Belgium, p.412-415 (1998).
  20. R. Bockstaele, A. Van Hove, T. Coosemans, C. Sys, I. Moerman, B. Dhoedt, R. Baets, P. Van Daele, J. Van Koetsem, L. Van der Torren, Microcavity LED based parallel data link using small diameter (125 mm) plastic optical fibres, Optics in Computing OC'98, 3490, Belgium, p.293-296 (1998).
  21. G. Flamand, K. De Mesel, J. Derluyn, I. Moerman, B. Dhoedt, R. Baets, P. Demeester, P. Van Daele, InP-based modulator array antennas at 1.06 mm, 1998 Annual IEEE/LEOS Benelux Chapter Workshop - Integrated Optics and Passive Micro-Optics, Belgium, p.19 (1998).
  22. A. Van Hove, T. Coosemans, B. Dhoedt, P. Van Daele, R. Baets, J. Van Koetsem, L. Van den Torren, Termination of small diameter (125 mm) plastic optical fiber for 1x12 datacommunication, 48th Electronic Components & Technology Conference, United States, p.783-789 (1998).
  23. B. Dhoedt, R. Baets, P. Van Daele, P. Heremans, J. Van Campenhout, J. Hall, R. Michalzik, A. Schmid, H. Thienpont, R. Vounckx, A. Neyer, D.C. O'Brien, J. Van Koetsem, Optically interconnected integrated circuits to solve the CMOS interconnect bottleneck, 48th Electronic Components & Technology Conference, United States, p.992-998 (1998).
  24. J. Hendrix, G. Flamand, K. Jacobs, I. Moerman, B. Dhoedt, R. Baets, P. Demeester, P. Van Daele, InP-based modulator array antennas at 1.06 mm, 10th Int. Conf. on Indium Phosphide and Related Materials (IPRM'98), Japan, p.687-690 (1998).
  25. S. Goeman, S. Boons, B. Dhoedt, K. Vandeputte, K. Caekebeke, R. Baets, P. Van Daele, First demonstration of highly TM reflective and highly polarisation selective diffraction gratings (GIRO-gratings) for long wavelength VCSELs, OSA 1998 Technical Digest Series Volume 4 Integrated Photonics Research, Canada, p.383-385 (1998).
  26. S. Goeman, B. Dhoedt, K. Caekebeke, S. Verstuyft, R. Baets, P. Van Daele, N. Nieuborg, J. Stiens, H. Thienpont, R. Vounckx, Experimental demonstration of 'GIRO-gratings', Proc. of the IEEE/LEOS Benelux-Chapter 1997, Netherlands, p.49-52 (1997).
  27. G. Flamand, J. Hendrix, K. Jacobs, I. Moerman, B. Dhoedt, R. Baets, P. Demeester, P. Van Daele, High efficiency InGaAsP/InP phase modulator at 1.06 mm, Proc. of the IEEE/LEOS Benelux-Chapter 1997, Netherlands, p.105-108 (1997).
  28. A. Van Hove, R. Bockstaele, T. Coosemans, B. Dhoedt, R. Baets, P. Van Daele, Termination and coupling experiments for a 1x12 small diameter (125mm) Plastic Optical Fiber array and POF coupling to microcavity LEDs, Proc. of the IEEE/LEOS Benelux-Chapter 1997, Netherlands, p.113-116 (1997).
  29. V. Baukens, G. Verschaffelt, P. Tuteleers, P. Vynck, H. Ottevaere, M. Kufner, H. Thienpont, I. Veretennicoff, B. Dhoedt, R. Baets, Optical performance analysis of free-space and guided-wave optical pathway blocks for intra-MCM interconnects, Proc. of the IEEE/LEOS Benelux-Chapter 1997, Netherlands, p.129-132 (1997).
  30. S. Goeman, B. Dhoedt, K. Caekebeke, S. Verstuyft, R. Baets, P. Van Daele, N. Nieuborg, K. Panajotov, H. Thienpont, Experimental demonstration of high TM reflectivity in GaAs based GIRO-gratings in the wavelength region of 9-11mm, Proceedings of the 10th Annual Meeting of LEOS'97, 1, United States, p.13-14 (1997).
  31. B. Demeulenaere, B. Dhoedt, R. Baets, Design of AlAs-oxidized VCSELs with stable fundamental mode operation, Proceedings of the 10th Annual Meeting of LEOS'97, 2, United States, p.352-353 (1997).
  32. R. Bockstaele, C. Sys, J. Blondelle, H. De Neve, F. Goussaert, B. Dhoedt, I. Moerman, P. Van Daele, R. Baets, Microcavity LEDs for optical interconnects, Mini-Symposium on Devices & Systems for Optical Interconnects & Data Links (The Rank Prize Funds), United Kingdom, (1997).
  33. R. Bockstaele, C. Sys, J. Blondelle, H. De Neve, F. Goussaert, B. Dhoedt, I. Moerman, P. Van Daele, R. Baets, Microcavity LEDs with an overall efficiency of 4% into a numerical aperture of 0.5, Proceedings of the LEOS Summer Topical Meetings, Canada, p.69-70 (1997).
  34. R. Baets, F. Fredricx, B. Dhoedt, P. Demeester, P. Van Daele, J. Van Campenhout, A. Van Calster, H. Thienpont, R. Vounckx, G. Borhgs, M. Goodwin, D. Morlion, A. Neyer, K. Ebeling, H. Melchior, G. Parry, Optical interconnect solutions to the I/O-problem in future CMOS generations, OSA Topical meeting on Optics in Computer, 1997 Technical Digest Series (invited), 8, United States, (1997).
  35. R. Baets, B. Dhoedt, J. Blondelle, H. De Neve, F. Fredricx, L. Vanwassenhove, P. Demeester, I. Moerman, P. Van Daele, G. Borghs, J. Lernout, J. Van Campenhout, A. Van Calster, H. Thienpont, I. Veretennicoff, R. Vounckx, Micro-cavity LED's and their application in optical interconnect research within the IUAP-24 project, Proceedings of the Annual Symposium of the IEEE/LEOS Benelux Chapter (invited), Netherlands, p. 4-10 (1996).
  36. M. Charrier, M. Goodwin, R. Holzner, J. Wieland, B. Dhoedt, M. Aberg, Review of the HOLICS optical interconnects programme (ESPRIT III Project 6276), Proc. of the 3rd IEEE Int. Conf. on Electronics, Circuits and Systems (ICECS'96), 1, Greece, p.436-439 (1996).
  37. B. Ryvkin, J. Danckaert, C. Van de Poel, M. Peeters, H. Thienpont, I. Verentennicoff, B. Dhoedt, R. Baets, A novel polarisation sensitive opto-electronic switching device for optical information processing, 2nd Int. Conf. on Optical Information Processing, Russia, (1996).
  38. B. Dhoedt, S. Goeman, B. Demeulenaere, B. Baekelandt, D. De Zutter, R. Baets, GIRO gratings : a novel concept for mirrors with high reflectivity and polarisation selectivity, Integrated Photonics Research 1996 Technical Digest Series, 5(JTuB), United States, (1996).
  39. B. Demeulenaere, B. Dhoedt, S. Goeman, R. Baets, Accurate three-dimensional modeling of transverse mode threshold gain in vertical cavity surface emitting lasers, Integrated Photonics Research 1996 Technical Digest Series, 6(ITuE), United States, p.336-339 (1996).
  40. L. Vanwassenhove, J. Blondelle, H. de Neve, F. Vermaerke, B. Dhoedt, R. Baets, I. Moerman, P. Van Daele, P. Demeester, Emitters for optical interconnection, Proc. of SPIE_The International Society for Optical Engineering 'Optical Interconnects in Broadband Switching Architectures' (invited), 2692, United States, p. 12 - 21 (1996).
  41. B. Dhoedt, B. Demeulenaere, R. Baets, C. Van de Poel, H. Thienpont, Design of polarisation selective grating structures for surface emitting lasers, The Pacific Rim Conference on Lasers and Electro-Optics, Japan, p.116-117 (1995).
  42. B. Dhoedt, P. De Dobbelaere, J. Blondelle, P. Van Daele, P. Demeester, H. Neefs, J. Van Campenhout, R. Baets, Arrays of light emitting diodes with integrated diffractive microlenses for board-to-board optical interconnect applications: design, modelling and experimental assessment, CLEO EUROPE '94, Netherlands, p.342-343 (1994).
  43. B. Dhoedt, P. De Dobbelaere, J. Blondelle, R. Baets, P. Demeester, P. Van Daele, LED-arrays with integrated diffractive microlenses for free optical space interconnect, Fourth Microoptic Conference and Eleventh Topical Meeting on Gradient-Index Optical Systems, MOC/GRIN'93, L4, Japan, p.320-323 (1993).
  44. P. Van Daele, F. Vermaerke, P. De Dobbelaere, G. Vermeire, L. Buydens, J. Blondelle, T. Qingshen, J. Verbeke, B. Dhoedt, S. Verstuyft, G. Janssens, I. Moerman, J. Vandewege, R. Baets, P. Demeester, InGaAs/GaAs light emittors for optical interconnections, Proc. of SOTAPOCS XIX, part of the 184th Electrochemical Society Meeting (invited), 94(5), United States, p.285-293 (1993).
  45. P. Van Daele, F. Vermaerke, P. De Dobbelaere, G. Vermeire, L. Buydens, J. Blondelle, T. Qingshen, J. Verbeke, B. Dhoedt, S. Verstuyft, G. Janssens, I. Moerman, J. Vandewege, R. Baets, P. Demeester, InGaAs/GaAs light emittors for optical interconnections, Proceedings of the 1st Int. Symp. on Long Wavelength Infrared Detectors and Arrays: Physics and Applications, part of the 184th Electrochemical Society Meeting (invited), 94(5), German Federal Republic, p.285-293 (1993).
  46. B. Dhoedt, P. De Dobbelaere, R. Baets, Integration of Fresnel lenses with LED arrays : suitability for free space board to board interconnect, Proceedings of the 10th Topical Meeting on Gradient-Index Optical Systems, Spain, p.60-63 (1992).
  47. B. Dhoedt, P. De Dobbelaere, R. Baets, B. Houssay, Micro-optic imaging systems for optical board to board interconnect : a comparison of lens arrays with a single lens system, Gradient-index Optical Systems Topical Meeting, 1991 Technical Digest Series, 9, United States, p.22-25 (1991).
    National Journals

  1. B. Dhoedt, R. Baets, Optische interconnecties voor geavanceerde computersystemen, Gent werkt/Gent works, 111, p.96-98 (1997).
    National Conferences

  1. A. Van Hove, R. Bockstaele, T. Coosemans, B. Dhoedt, R. Baets, P. Van Daele, Termination and coupling experiments for a 1x12 small diameter (125µm) Plastic Optical Fiber array and POF coupling to microcavity LEDs, URSI Forum '97, Belgium, p.22-25 (1997).
  2. G. Flamand, J. Hendrix, K. Jacobs, I. Moerman, B. Dhoedt, R. Baets, P. Demeester, P. Van Daele, High efficiency InGaAsP/InP phase modulator at 1.06 µm, URSI Forum '97, Belgium, p. 8-11 (1997).
  3. V. Baukens, G. Verschaffelt, P. Tuteleers, P. Vynck, H. Ottevaere, M. Kufner, H. Thienpont, I. Veretennicoff, B. Dhoedt, R. Baets, Optical performance analysis of free-space and guided-wave optical pathway blocks for intra-MCM interconnects, URSI Forum'97, Belgium, p.2 (1997).
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