Research Summary
Chao-Hsin (Wayne) Wu received the B.S. and M.S. degrees in Electrical Engineering from National Taiwan University (NTU) in 2002 and 2004, respectively, and the Ph.D. degree in Electrical and Computer Engineering from the University of Illinois at Urbana-Champaign (UIUC) in 2010.
He joined NTU in 2011 and is currently the Irving T. Ho Outstanding Young Chair Professor. His research focuses on compound semiconductor microelectronic and optoelectronic devices, spanning LET/transistor lasers, VCSELs, high-power and narrow-linewidth DFB lasers, micro-LEDs, GaN power/RF devices, 2D materials, and heterogeneous integrations for advanced photonics applications.
Professional Appointments
Aug. 2025 – Present
Director
Graduate Institute of Electronics Engineering (GIEE), College of EECS, NTU
Aug. 2022 – Present
Associate Director
Nano-Electro-Mechanical-Systems (NEMS) Research Center, NTU
Aug. 2020 – Present
Professor
NTU EE / GIPO / GIEE
Feb. 2022 – 2025
Director
Program in Semiconductor Devices, Materials, and Hetero-integration (DSHI), GSAT, NTU
Aug. 2016 – Jul. 2020
Associate Professor
NTU EE / GIPO / GIEE
Aug. 2011 – Jul. 2016
Assistant Professor
NTU EE / GIPO / GIEE
Jan. 2011 – Jul. 2011
Postdoctoral Research Fellow
UIUC ECE
Aug. 2005 – Jul. 2006
Full-Time Instructor & Teaching Assistant
NTU EE
Research Interests & Highlights
- Transistor Laser (TL) / LET: high-speed modulation and opto-electronic integrated circuits; rate-equation modeling and carrier dynamics.
- VCSELs: single-/multi-mode VCSELs for 25G/50G/100G optical interconnects and high-speed data transmission.
- Advanced DFB Laser: high-power 1310 nm; narrow-linewidth 1550 nm for FMCW LiDAR; dual-wavelength/low-phase-noise sources for THz.
- Silicon Photonic (SiPh) / Hetero-integration / CPO tech.: heterogeneous integration and external-laser-source technologies for next-generation optical interconnects.
- Photodiode/Photodetector & SPAD: single-photon avalanche diode devices and circuits for sensing and imaging applications.
- Micro-LEDs: GaN micro-LEDs for visible light communication and high-bandwidth modulation.
- 2D Materials & HEMT: low-contact-resistance 2D devices; III-V and GaN HEMTs for RF/power electronics.
Invited Papers
Recent Advances in 850 nm VCSELs for High-Speed Interconnects
Invited Feature Paper
850/940-nm VCSEL for optical communication and 3D sensing
Selected Cover Story
Oxide-Confined VCSELs for High-Speed Optical Interconnects
Invited
Courses & Teaching
Electrical Engineering (EE)
- NTU 901 24110 (EE2009) Electronics I
- NTU 901 43700 (EE4030) Introduction to Nano-electronics
- NTU 901 20180 (EE2019) Technology Innovation Design Project
- NTU 921 U0890 (EE5019) Solid State Physics (II)
- NTU 921 U7120 (EE5114) Integrated Circuit Technology
Photonics & Optoelectronics (GIPO)
- NTU 941 U0250 (OE5016) Fundamentals of Lasers
- NTU 941 U0560 (OE5046) Solar Cell Technology
Professional Activities
- IEEE: Member, 2003 – present (Electron Device Society, Photonics Society)
- President, Photonics Society Taipei Section (2024/09 – present)
- Associate Editor, IEEE Journal of Quantum Electronics (2024/03 – present)
- Vice President, Photonics Society Taipei Chapter (2023/01 – 2024/08)
- Treasurer, Photonics Society Taipei Chapter (2021/01 – 2022/12)
- Optoelectronic Device Technical Committee (Electron Device Society, 2020 – 2022)
- OPTICA: Fellow (2024); Topical Editor, Optics Letters (2022/02 – present)
- SPIE: Member, 2012 – present
- Guest Editor: Micromachines (MDPI) Special Issue “Wide Bandgap Semiconductor (WBG) Microelectronics and Optoelectronic Devices” (2021)
Reviewer for Peer-Review Journals
- IEEE: Trans. Electron Devices, Electron Device Letters, Photonic Technology Letters, Journal of Lightwave Technology, Trans. Device and Material Reliability, Trans. Microwave Theory and Techniques, Photonics Journal, Access, Journal of Electron Device Society, Journal of Quantum Electronics, Microwave and Wireless Components Letters
- OPTICA: Applied Optics, Chinese Optics Letters, Journal of Lightwave Technology, Optical Materials Express, Optics Express, Optics Letters, OSA Continuum, Photonics Journal
- AIP: Applied Physics Letters, Journal of Applied Physics, AIP Advances, Review of Scientific Instruments
- IOP Science: 2D materials, Applied Physics Express, Japanese Journal of Applied Physics, Results in Optics, Semiconductor Science and Technology
- Elsevier: Journal of Science: Advanced Materials and Devices, Vacuum, Results in Physics, Synthetic Metals, Optics Communications, Microelectronics Reliability, Materials Science in Semiconductor Processing
- Springer: Applied Physics A, Applied Physics B, Optical and Quantum Electronics
- Wiley: Advanced Photonics Research, Advanced Theory and Simulations, Physica Status Solidi a, Physica Status Solidi b
- Nature: Scientific Reports, Light: Science and Applications
- ACS: ACS Applied Electronic Materials, The Journal of Physical Chemistry
- World Scientific: Surface Reviews and Letters
- EDP Science: European Physical Journal Applied Physics
- IET: Electronics Letters
- MDPI: Micromachines, Sensors, Photonics
- Science Direct: Optical Fiber Technology
Education
2010
Ph.D. in Electrical and Computer Engineering
University of Illinois at Urbana-Champaign (UIUC)
2004
M.S. in Electrical Engineering
National Taiwan University (GIPO)
2002
B.S. in Electrical Engineering
National Taiwan University (EE)
Honors & Awards
- 2024 OPTICA Fellow
- 2022 Futuretech Award, Ministry of Science and Technology, Taiwan
- 2021 Futuretech Award, Ministry of Science and Technology, Taiwan
- 2019–2023 Flexible Salary Program for Recruiting and Retaining Exceptional Talents
- 2018 Outstanding Youth Electrical Engineer Award (CIEE)
- 2017 Irving T. Ho Outstanding Young Scholar
- 2017 Academic Contribution Award of EECS College of National Taiwan University
- 2010 Nick Holonyak, Jr. and Katherine Graduate Research Award