Biography 

Professor William Shieh received the M.S. degree in electrical engineering and the Ph.D. degree in physics from the University of Southern California, Los Angles, in 1994 and 1996, respectively. He had worked in various previous renowned institutions such as Jet Propulsion Laboratories, Pasadena, California, and Bell Laboratories, Holmdel, New Jersey. From 2004 to 2022, he had been with the Department of Electrical and Electronic Engineering, University of Melbourne, Australia. In 2022, he joins the Westlake University as Chair Professor in Optical Communication and Sensing. He has published more than 300 journal and conference papers and submitted 14 U.S. patents (nine issued). He has been awarded Australian Future Fellowship, 2011-2014. He is a fellow of both IEEE and Optical Society of America (OSA).

Research

Professor Shieh has been conducting fundamental and practical research in a broad range of topics in optical communications and photonics, including coherent optical OFDM, advanced optical modulation formats, space-division-multiplexing and polarization effects in optical fibers. His current research interests include:

(1) Orthogonal frequency division multiplexing (OFDM) techniques for both optical and wireless applications.

(2)  Few-mode fiber based devices and transmission system.

(3)  Long-range multi-parameter optical sensing; Coherent optical time domain reflectometry (COTDR).

(4)  Optical integration for cost-effective optical communication and sensing systems.

(5)  Artificial neural network (ANN) application in combating nonlinearity in optical channels.

(6)  Coherent optical communications, optical signal processing and equalization

(7)  All-optical packet switching, wavelength conversion and novel optical network architecture.

(8)  RF photonics involving RF signal generation, characterization, transmission and processing.

Representative Publications

1. Xu, Z., Sun, C., Ji, T., Manton, J.H. & Shieh, W. 2019, ‘Computational complexity comparison of feedforward/radial basis function/recurrent neural network-based equalizer for a 50-Gb/s PAM4 direct-detection optical link’, Optics Express, vol. 27, no. 25, pp. 36953- 36964.

2. Shieh, W., Sun, C. & Ji, H. 2020, ‘Carrier-assisted differential detection’, Light: Science and Applications, vol. 9, no. 1, pp.1-9.

3. Chen, X., Antonelli, C., Mecozzi, A., Che, D. & Shieh, W. 2019, ‘High-capacity direct-detection systems’, Optical Fiber Telecommunications VII, pp. 419-441 (Book Chapter)

4. Hu, Q., Che, D., Wang, Y. & Shieh, W. 2015, ‘Advanced modulation formats for high performance short-reach optical interconnects’, Optics Express, vol. 23, no. 3, pp. 3245-3259.

5. Zhou, X., Gao, Y., Huo, J. & Shieh, W. 2021, ‘Theoretical Analysis of Phase Noise Induced by Laser Linewidth and Mismatch Length in Self-Homodyne Coherent Systems’, Journal of Lightwave Technology, vol. 39, no. 5, pp. 1312-1321.

6. Shieh, W., Bao, H. & Tang, Y. 2008, ‘Coherent optical OFDM: Theory and design’, Optics Express, vol. 16, no. 2, pp. 841- 859.

7. Chen, X. & Shieh, W. 2010, ‘Closed-form expressions for nonlinear transmission performance of densely spaced coherent optical OFDM systems’, Optics Express, vol. 18, no. 18, pp. 19039-19054.

8. Shieh, W. & Ho, K.-P. 2008, ‘Equalization-enhanced phase noise for coherent-detection systems using electronic digital signal processing’, Optics Express, vol. 16, no. 20, pp. 15718-15727.

9. Shieh, W. & Djordjevic, I. 2010, ‘OFDM for Optical Communications’. Academic Press. (Book).

10. Fang, J., Xu, P., Dong, Y. & Shieh, W. 2017, ‘Single-shot distributed Brillouin optical time domain analyzer’, Optics Ex- press, vol. 25, no. 13, pp. 15188-15198.

11. Li, A., Chen, X., Al Amin, A., Ye, J. & Shieh, W. 2012, ‘Space-division-multiplexed high-speed superchannel transmission over few-mode fiber’, Journal of Lightwave Technology, vol. 30, no. 24, pp. 3953-3964.

Professor Shieh has been conducting a wide range of research topics in optical communication and sensing. The Optical Communication and Sensing Laboratory (OCSL) is currently actively recruiting researchers at the levels of Postdoctoral Research Fellows, Assistant/Associate/Full Research Professors.  Interested parties shall contact Prof. Shieh at shiehw@westlake.edu.cn.  Prof. Shieh’s lab has several openings for PhD students. For the graduating bachelor and master students who are interested in pursuing PhD in Prof. Shieh’s lab, please contact him directly or apply through the following link:

https://en.westlake.edu.cn/admissions_aid/phdprograms/ .