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Mr. Cheng-Han Wu  (Doctoral Researcher)

This person worked in the group from 2018 till 2024.

Affiliation: Ghent University - imec
Dept. Of Information Technology (INTEC)
Office: imec,
E-mail: chenghan.wu@ugent.be
Research Area: 2D Materials, silicon photonics, modulator
Promotor: Dries Van Thourhout
PhD Thesis: Cheng-Han Wu, Integrated Photonic Modulators Based on Graphene and Other 2D Materials for Optical Interconnects, 3/2024
Cheng-HanWu
ChengHan Wu (Kenny) was born in 1992. He received the Master Degree in Material Science and Engineering from National Taiwan University in March 2017 with the thesis "Growth of High Quality Graphene and the Role of Cu2O on its Transfer and Photoelectrochemical Application". He also have 6 months internship experience at imec, Leuven.

Specific Research Topics

Publications (15)

    International Journals

  1. T. Reep, C. Wu, D. Yudistira, S. Brems, I. Asselberghs, M. Pantouvaki, J. Van Campenhout, D. Van Thourhout, B. Kuyken, Graphene absorber on an SOI chip for active and passive mode locking of lasers, Scientific Reports, 15(1), doi:10.1038/s41598-025-93051-z (2025)  Download this Publication (3.8MB).
  2. C. Wu, T. Reep, S. Brems, D. Yudistira, J. Van Campenhout, I. Asselberghs, C. Huyghebaert, M. Pantouvaki, Z. Wang, D. Van Thourhout, Graphene-based Silicon Photonic Electro-Absorption Modulators and Phase Modulators, IEEE Journal on Selected Topics in Quantum Electronics, 30(4), p.1-13 doi:10.1109/JSTQE.2024.3411058 (2024)  Download this Publication (6.4MB).
  3. C. Wu, T. Reep, S. Brems, J. Jussot, V. Mootheri, J. Van Campenhout, C. Huyghebaert, M. Pantouvaki, Z. Wang, D. Van Thourhout, High-efficiency dual single layer graphene modulator integrated on slot waveguides, Optics Express, 31(22), p.36872-36882 doi:10.1364/OE.503140 (2023)  Download this Publication (3.5MB).
  4. C. Wu, S. Brems, D. Yudistira, D. Cott, A. Milenin, K. Vandersmissen, A. Maestre, A. Centeno, A. Zurutuza, J. Van Campenhout, C. Huyghebaert, D. Van Thourhout, M. Pantouvaki, Wafer-Scale Integration of Single Layer Graphene Electro-Absorption Modulators in a 300mm CMOS Pilot Line, Lasers & Photonics Reviews, doi:10.1002/lpor.202200789 (2023)  Download this Publication (2.1MB).
      International Conferences

    1. T. Reep, C. Wu, Y. Huang, Y. Guo, C. Haffner, B. Kuyken, D. Van Thourhout, Enhancing modulation efficiency and reducing transmission penalty in double-layer graphene modulators through waveguide mode shifting, accepted for publication in Annual Symposium of the IEEE Photonics Society Benelux Chapter, Belgium,  (to be published).
    2. T. Reep, C. Wu, S. Brems, D. Yudistira, J. Van Campenhout, M. Pantouvaki, D. Van Thourhout, B. Kuyken, Active and passive mode-locking of a laser using a graphene modulator on an SOI chip, IEEE Photonics Conference (IPC), United States, p.paper ThB1.2 (2 pages) doi:10.1109/IPC57732.2023.10360780 (2023)  Download this Publication (1.1MB).
    3. T. Reep, C. Wu, Y. Huang, Y. Guo, C. Haffner, B. Kuyken, D. Van Thourhout, Transmission penalty optimization in a double-layer graphene slot modulator through mode-shifting, Graphene week, Sweden, (2023).
    4. C. Wu, Y. Huang, Z. Wang, S. Brems, J. Van Campenhout, M. Pantouvaki, D. Van Thourhout, Dual single layer graphene Mach-Zehnder modulator with high efficiency and gigahertz bandwidth., Graphene Week 2023, Sweden, (2023)  Download this Publication (255KB).
    5. T. Reep, C. Wu, E. Vissers, S. Brems, D. Yudistira, J. Van Campenhout, M. Pantouvaki, D. Van Thourhout, B. Kuyken, An experimental demonstration of a passively mode-locked laser using an integrated graphene saturable absorber, IEEE Benelux Photonics Chapter - Annual Symposium 2022, Netherlands, p.197-200 (2022)  Download this Publication (2.7MB).
    6. T. Reep, C. Wu, Z. Wang, S. Brems, S. Clemmen, C. Huyghebaert, J. Van Campenhout, M. Pantouvaki, D. Van Thourhout, B. Kuyken, Saturable absorption of a double layer graphene modulator on a slot waveguide, IEEE Photonics Conference (IPC), doi:10.1109/IPC53466.2022.9975477 (2022)  Download this Publication (1.1MB).
    7. C. Wu, Z. Wang, J. Jussot, S. Brems, V. Mootheri, C. Huyghebaert, J. Van Campenhout, M. Pantouvaki, D. Van Thourhout, Large >0.2dB/µm Modulation Depth Double-Layer Graphene Electro-Absorption Modulator on Slot waveguide, Conference on Lasers and Electro-Optics, doi:10.1364/CLEO_SI.2022.SF4K.4 (2022)  Download this Publication (600KB).
    8. C. Wu, S. Brems, I. Asselberghs, C. Huyghebaert, V. Sorianello, M. Romagnoli, J. Van Campenhout, D. Van Thourhout, M. Pantouvaki, Hybrid Graphene-WS2 Mach-Zehnder modulator on passive silicon waveguide, Conference on Lasers and Electro-Optics Europe, (2021)  Download this Publication (321KB).
    9. C. Wu, S. Brems, D. Yudistira, D. Cott, A. Milenin, K. Vandersmissen, A. Maestre, A. Centeno, J. Van Campenhout, M. Pantouvaki, Graphene electro-absorption modulators integrated at wafer-scale in a CMOS fab, 2021 Symposia on VLSI Technology and Circuits, (2021)  Download this Publication (754KB).
    10. C. Alessandri, C. Wu, F. Peyskens, I. Asselberghs, S. Brems, C. Huygebaert, J. Van Campenhout, M. Pantouvaki, D. Van Thourhout, Prospects for Hybrid Integration of Si and SiN Waveguides with Graphene and Other 2D-materials , Advanced Photonics Congress, p.ITh3A.2 (2020)  Download this Publication (96KB).
    11. C. Alessandri, C. Wu, X. Wu, I. Asselberghs, S. Brems, C. Huyghebaert, J. Van Campenhout, D. Van Thourhout, M. Pantouvaki, Influence of passivation layer on graphene properties for optoelectronic applications, Graphene Week 2019, Finland, (2019)  Download this Publication (149KB).
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