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Ir. Andualem Ali Yimam  (Doctoral Researcher)

This person is working in this group since 2021.
Affiliation: Ghent University
Department of Information Technology (INTEC)
Address: Technologiepark-Zwijnaarde 126
9000 Ghent
Belgium
Office: iGent, Office 150.011
E-mail: ayimam.yimam@ugent.be
Promotors: Dries Van Thourhout and Geert Morthier
Master Thesis: Andualem Ali Yimam, All-optical signal processing using DFB and DBR laser diodes, 10/2009
Andualem AliYimam

Specific Research Topics

Publications (16)

    International Journals

  1. A. Yimam, D. Colucci, C. Caer, D. Yudistiri, Y. De Koninck, H. Sar, M. Barishnikova, P. Verheyen, J. Van Campenhout, B. Kunert, D. Van Thourhout, G. Morthier, Advanced characterization and parameter extraction of electrically injected InGaAs/GaAs nano-ridge lasers monolithically integrated on silicon, Optics Express, 33(13), p.27929-27941 doi:10.1364/OE.566045 (2025)  Download this Publication (4.5MB).
  2. A. Yimam, D. Colucci, C. Caer, D. Yudistira, Y. De Koninck, H. Sar, M. Baryshnikova, P. Verheyen, J. Van Campenhout, B. Kunert, G. Morthier, D. Van Thourhout, Semi-analytical model for electrically injected GaAs nano-ridge laser diodes monolithically integrated on silicon, Optics Express, 33(2), United States, p.2101-2114 doi:10.1364/OE.543613 (2025)  Download this Publication (5.1MB).
  3. Z. Ouyang, E.M.B. Fahmy, D. Colucci, A. Yimam, J. Van Campenhout, B. Kunert, D. Van Thourhout, Ultra-compact InGaAs-GaAs nano-ridge laser monolithically grown on 300 mm silicon substrate, Optics Letters, 50(7), p. 2358-2361 (2025)  Download this Publication (4.1MB).
  4. Y. De Koninck, C. Caer, D. Yudistira, M. Baryshnikova, S. Kanta Patra, H. Sar, P. Hsieh, N. Kuznetsova, D. Colucci, A. Milenin, A. Yimam, G. Morthier, D. Van Thourhout, P. Verheyen, B. Kunert, J. Van Campenhout, GaAs nano-ridge laser diodes fully fabricated in a 300mm CMOS pilot line, Nature, 637, p.63-69 doi:10.1038/s41586-024-08364-2 (2025)  Download this Publication (8.9MB).
  5. Z. Ouyang, D. Colucci, E.M.B. Fahmy, A. Yimam, J. Van Campenhout, B. Kunert, D. Van Thourhout, InGaAs/GaAs nano-ridge laser with an amorphous silicon grating monolithically grown on a 300mm Si wafer , Optics Letters, (2024)  Download this Publication (4.1MB).
      International Conferences

    1. P-Y Hsieh, P. Swekis, H. Sar, D. Colucci, D. Coenen, D. Prasad Panda, E. Milenin, A. Yimam, G. Morthier, D. Van Thourhout, M. Chakrabarti, Y. Ban, F. Ferraro, D. Yudistiri, B. Kunert, J. Van Campenhout, Reliability and Output Power Improvement of GaAs Nano-Ridge Lasers integrated on 300 mm Silicon, accepted for publication in OFC2026,  (to be published).
    2. A. Yimam, D. Colucci, C. Caer, D. Yudistiri, Y. De Koninck, H. Sar, M. Barishnikova, P. Verheyen, J. Van Campenhout, B. Kunert, G. Morthier, D. Van Thourhout, Extraction of Recombination Coefficients for Electrically Injected InGaAs/GaAs Monolithic Nano-ridge Laser Diodes Integrated on Silicon, IEEE Silicon Photonics Conference, United Kingdom, (2025)  Download this Publication (1.7MB).
    3. Z. Ouyang, D. Colucci, E.M.B. Fahmy, A. Yimam, J. Van Campenhout, B. Kunert, D. Van Thourhout, Compact 1.31 μm-emission In0.45Ga0.55As/ In0.25Ga0.75As photonic crystal nano-ridge laser monolithically grown on 300 mm silicon substrate, SPIE Europe 2024, France, p.130120D (2024)  Download this Publication (774KB).
    4. A. Yimam, G. Morthier, D. Van Thourhout, Accurate Laser Model for Electrically Injected Monolithic GaAs on Silicon Nano-ridge Laser Diodes, Conference on Lasers and Electro-Optics, p.paper Tu2A.35.pdf (2 pages) (2024)  Download this Publication (1.2MB).
    5. A. Yimam, G. Morthier, D. Van Thourhout, Semi-analytical model for electrically injected monolithic GaAs on silicon nano-ridge laser diodes, Annual Symposium of the IEEE Photonics Society Benelux Chapter, Belgium, (2023)  Download this Publication (748KB).
    6. Z. Ouyang, E. Fahmy, D. Colucci, A. Yimam, B. Kunert, D. Van Thourhout, Side-amorphous-silicon-grating InGaAs/GaAs nano-ridge distributed feedback laser monolithically grown on 300 mm silicon substrate, Asia Communications and Photonics Conference 2023, China, p.paper ACPPOEM 0731-152 (3 pages) (2023)  Download this Publication (563KB).
    7. Z. Ouyang, E. Fahmy, A. Yimam, B.Kunert, D. Van Thourhout, Low-optical-pumping-threshold InGaAs/GaAs Nano-ridge Laser Monolithically Grown on 300 mm Silicon Substrate, Conference on Lasers and Electro-Optics, United States, p.paper STh3H.3 (2 pages) (2023)  Download this Publication (398KB).
    8. Z. Ouyang, E. Fahmy, D. Colucci, A. Yimam, B. Kunert, D. Van Thourhout, Top-amourous-silicon-grating InGaAs+GaAs nano-ridge distributed feedback laser monolithically grown on 300 mm silicon substrate, IEEE Photonic Benelux Annual Symposium, Netherlands, (2022)  Download this Publication (265KB).
    9. K. Huybrechts, A. Ali, R. Baets, G. Morthier, Novel concept for all-optical flip-flop operation in a single DBR laser diode, 22nd Annual Meeting of the IEEE Photonics Society, Turkey, p.ThF2 doi:10.1109/leos.2009.5343402 (2009)  Download this Publication (293KB).
    10. K. Huybrechts, A. Ali, G. Morthier, All-optical 2R regeneration and wavelength conversion at 10 Gb/s using a single bistable DFB laser diode, Photonics in Switching 2009, Italy, p.FrII2-6 doi:10.1109/ps.2009.5307839 (2009)  Download this Publication (99KB).
    11. K. Huybrechts, A. Ali, T. Tanemura, Y. Nakano, G. Morthier, Numerical and experimental study of the switching times and energies of DFB laser based all-optical flip-flops, Photonics in Switching 2009, Italy, p.WeI2-6 doi:10.1109/ps.2009.5307761 (2009)  Download this Publication (112KB).
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