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Dr. ir. Jan Haes  (Postdoctoral Researcher)

This person is no longer working in this group.

Affiliation: Agentschap Ondernemen
PhD Thesis: Jan Haes, Studie van bundeleigenschappen van laserdiodes en ontwerp van geintegreerde bundelexpansiestrukturen, 6/1996

Publications (39)

    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 doi:10.1016/S1369-8001(00)00090-1 (2000).
  2. 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 VCSELs, IEEE Photonics Technology Letters, 10(9), p.1205-1207 doi:10.1109/68.705591 (1998)  Download this Publication (74KB).
  3. J. Haes, B. Demeulenaere, R. Baets, D. Lenstra, T.D. Visser, H. Blok, Difference between TE and TM modal gain in amplifying waveguides: analysis and assessment of two perturbation approaches, Optical and Quantum Electronics, 29(2), p.263-273 doi:10.1023/A:101851442 (1997).
  4. T.D. Visser, B. Demeulenaere, J. Haes, D. Lenstra, R. Baets, H. Blok, Confinement and modal gain in dielectric waveguides, IEEE Journal of Lightwave Technology, 14(5), p.885-887 doi:10.1109/50.495172 (1996)  Download this Publication (266KB).
  5. J. Haes, R. Baets, C.M. Weinert, M. Gravert, H.P. Nolting, M. Adelaide Andrade, A. Leite, H.K. Bissessur, J.B. Davies, R.D. Ettinger, J. Ctyroky, E. Ducloux, F. Ratovelomanana, N. Vodjana, S. Helfert, R. Pregla, F.H. Wijnands, H.J. Hoekstra, G.J. Krijnen, A comparison between different propagative schemes for the simulation of tapered step index slab waveguides, IEEE Journal of Lightwave Technology, Special Issue on Multiwavelength Optical Technology and Networks, 14(6), p.1557-1569 doi:10.1109/50.511687 (1996)  Download this Publication (1.6MB).
  6. C. Wei, J. Haes, I. Moerman, R. Baets, M.K. Smit, Elliptic waveguide beam focusing and collimating elements in InP: analysis and experiment, Electronics Letters, 31(25), p.2168-2169 doi:10.1049/el:19951514 (1995).
  7. J. Willems, J. Haes, R. Baets, The bidirectional mode expansion method for two-dimensional waveguides: the TM case, Optical and Quantum Electronics, 27, p.995-1007 doi:10.1007/bf00558491 (1995).
  8. G. Vermeire, F. Vermaerke, I. Moerman, J. Haes, R. Baets, P. Van Daele, P. Demeester, A. Gustafsson, L. Samuelson, Monolithic integration of a single quantum well laser diode and a mode-size convertor using shadow-masked metalorganic vapour phase epitaxial growth, Journal of Crystal Growth, 145, p.875-880 doi:10.1016/0022-0248(94)91156-8 (1994).
  9. I. Moerman, M. D'Hondt, W. Vanderbauwhede, G. Coudenys, J. Haes, P. De Dobbelaere, R. Baets, P. Van Daele, P. Demeester, Monolithic integration of a spot size transformer with a planar buried heterostructure InGaAsP/InP-laser using the shadow masked growth technique, IEEE Photonics Technology Letters, 6(8), p.888-890 doi:10.1109/68.313042 (1994)  Download this Publication (274KB).
  10. J. Buus, W.J. Stewart, J. Haes, J. Willems, R. Baets, Spot size expansion for laser-to-fiber coupling using an integrated multimode coupler, IEEE, Journal of Lightwave Technology, 11(4), p.582-588 doi:10.1109/50.248121 (1993).
    Book / Book Chapter

  1. N.-P. Nolting, J. Haes, S. Helfert, Benchmark tests and modelling tasks, Photonic Devices for Telecommunications, How to Model and Measure, p.67-109 doi:10.1007/978-3-642-59889-0_3 (1998).
    International Conferences

  1. D. Van Thourhout, A. Van Hove, T. Van Caenegem, K. Vandeputte, P. Van Daele, I. Moerman, X.J.M. Leijtens, M.K. Smit, R. Baets, Realisation of a Phased-Array Multi-wavelength Laser using hybridly integrated PICs, 50th ECTC, Electronic Components & Technology Conference, United States, p.1266-1271 doi:10.1109/ectc.2000.853336 (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. 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 doi:10.1109/ectc.1999.776326 (1999).
  5. D. Van Thourhout, J. De Merlier, T. Van Caenegem, K. Vandeputte, I. Moerman, P. Van Daele, R. Baets, Elimination of crosstalk in the common amplifier of a multi-wavelength source by gain clamping, Optical Fiber Communication Conference (OFC) and the International Conference on Integrated Optics and Optical Fiber Communication (IOOC), United States, p.27-29 doi:10.1109/ofc.1999.768053 (1999).
  6. D. Van Thourhout, J. De Merlier, T. Van Caenegem, K. Vandeputte, I. Moerman, P. Van Daele, R. Baets, Demonstration of multi-wavelength laser with a gain-clamped output amplifier, Conference Proceedings of LEOS, 2, United States, p.192-193 doi:10.1109/leos.1998.739526 (1998).
  7. 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 1.55um VCSEL with metamorphic GaAs/AlGaAs top mirror, Proc. of the Third Annual Symposium of the IEEE/LEOS Benelux Chapter, Belgium, p.153-156 (1998).
  8. A. Van Hove, K. Vandeputte, L. Vanwassenhove, T. Coosemans, S. Verstuyft, R. Baets, P. Van Daele, J. Van Koetsem, L. Van den Torren, MT-compatible module for coupling LED- to POF-arrays, Proc. of the Third Annual Symposium of the IEEE/LEOS Benelux Chapter, Belgium, p.241-244 (1998).
  9. 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).
  10. C. Wei, D. Van Thourhout, I. Moerman, S. Goeman, K. Vandeputte, R. Baets, F. Groen, Y. Zhu, An integrated optical add/drop multiplexer in InP based on elliptic couplers and bragg grating reflector, Proceedings of the LEOS Summer Topical Meetings, Canada, p.28-29 doi:10.1109/leosst.1997.619150 (1997).
  11. Q. Tan, G. De Pestel, G. Willems, J. Cannaerts, W. Rehm, N. Kaiser, K. Vandeputte, A. Van Hove, J. Van Koetsem, A parallel optical link for intra- and inter-rack interconnections, Proceedings of the 47th Electronic Components & Technology Conference, United States, p.234-239 doi:10.1109/ectc.1997.606175 (1997).
  12. G. Sarlet, J. Haes, R. Baets, Optimisation of slab waveguides with given mode width towards low modal birefringence, Integrated Photonics Research 1996 Technical Digest Series, 6(IMH14), United States, p.201-204 doi:10.1364/ipr.1996.imh14 (1996).
  13. J. Buus, J. Haes, R. Baets, Analytical study of birefringence in slab waveguides, Integrated Photonics Research 1996 Technical Digest Series, 6(IWA4), United States, p.418-421 doi:10.1364/ipr.1996.iwa4 (1996).
  14. J. Haes, B. Demeulenaere, T.D. Visser, D. Lenstra, H. Blok, R. Baets, How (not) to calculate the confinement factor for the modal gain of TM modes in amplifying waveguides, ECOC, 2, Belgium, p.729-732 (1995).
  15. C. Wei, J. Haes, G. Dobbelaere, P. Demeester, R. Baets, X.J.M. Leijtens, A.H. De Vreede, M.K. Smit, E.G. Metaal, Elliptic beam converters on InP : design and experiment, Proceedings of the 7th European Conference on Integrated Optics, ECIO, Netherlands, p.193-196 (1995).
  16. R. Baets, C. Wei, G. Dobbelaere, J. Haes, O. van Hoorebeke, T. Tanghe, P. De Dobbelaere, I. Moerman, A very compact InP-based integrated optic Mach-Zehnder interferometer with a delay difference of 74 ps, Proceedings of the 7th European Conference on Integrated Optics, ECIO, Netherlands, p.323-326 (1995).
  17. J. Haes, I. Moerman, P. Demeester, R. Baets, Mode expansion simulation of vertical tapers in InP : comparison with experimental results and optimisation, Proceedings of the 7th European Conference on Integrated Optics, ECIO, Netherlands, p.399-402 (1995).
  18. J. Haes, J. Willems, R. Baets, Study of power conservation at waveguide discontinuities using the mode expansion method, 1995 Technical Digest Series Integrated Photonics Research, 7, United States, p.115-117 doi:10.1364/ipr.1995.ithg6 (1995).
  19. I. Moerman, M. D'Hondt, W. Vanderbauwhede, J. Haes, L. Vanwassenhove, P. De Dobbelaere, R. Baets, P. Van Daele, P. Demeester, Vertically tapered InGaAsP/InP waveguides and lasers resulting in low-loss fibre-chip coupling, ECOC, 2, Italy, p.1027-1030 (1994).
  20. J. Haes, J. Willems, R. Baets, Design of adiabatic tapers for high contrast step index waveguides, SPIE Linear and Nonlinear Integrated Optics, 2212, German Federal Republic, p.685-693 (1994).
  21. H.P. Nolting, R. Marz, A.D. Capobianco, C. De Angelis, J. Ctyroky, G.R. Hadley, J. Haes, J. Willems, R. Baets, Results of benchmark tests for different numerical BPM algorithms, SPIE Linear and Nonlinear Integrated Optics, 2212, German Federal Republic, p.275-295 doi:10.1109/50.365209 (1994).
  22. H.P. Nolting, R. März, A.D. Capobianco, C. De Angelis, J. Ctyroky, G.R. Hadley, J. Haes, J. Willems, R. Baets, Benchmark results for BPM algorithms, Integrated Photonics Research Conf.,1994 Tech. Digest Series, 3, United States, p. 2-4 (1994).
  23. J. Buus, D.J. Robbins, J. Haes, K. Sato, R. Baets, Asymmetric spot size expander for improved waveguide to fiber coupling, Integrated Photonics Research Conf.,1994 Tech. Digest Series, 3, United States, p.124-126 doi:10.1364/ipr.1994.thf17 (1994).
  24. R. Baets, J. Willems, J. Haes, Diversity in Beam Propagation Methods, European Conference on Integrated Optics (ECIO, V(I), Switzerland, p.13/1-13/3 (1993).
  25. J. Willems, J. Haes, R. Baets, Radiation Loss in Grating Assisted Codirectional Couplers, European Conference on Integrated Optics (ECIO, Switzerland, p.3/22-3/23 (1993).
  26. J. Willems, J. Haes, R. Baets, Eigenmode propagation analysis of radiation losses in waveguides with discontinuities and grating assisted couplers, Integrated Photonics Research, 10, United States, p.229-232 doi:10.1364/ipr.1993.ituc3 (1993).
  27. J. Haes, J. Willems, R. Baets, J. Buus, W.J. Stewart, New structure for efficiently coupling a waveguide to an optical fiber, Proceedings of OFC/IOOC, 4, United States, p.118-119 doi:10.1364/ofc.1993.wh8 (1993).
      National Conferences

    1. A. Van Hove, K. Vandeputte, L. Vanwassenhove, T. Coosemans, S. Verstuyft, R. Baets, P. Van Daele, J. Van Koetsem, L. Van den Torren, MT-compatible module for coupling LED- to POF-arrays, URSI Forum , Belgium, p.13-16 (1998).
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