Welcome to
ZHANG, Yaojing WEBSITE
Prof. Zhang obtained her Bachelor of Science degree in Information Engineering from Shanghai Jiao Tong University in 2014, and her Ph.D. degree in Electronic Engineering from The Chinese University of Hong Kong (CUHK) in 2018 under the supervision of Prof. Hon Ki Tsang. She continued to work as a postdoctoral fellow in CUHK successively supported by Hong Kong Postdoctoral Hub-Innovation and Technology Fund (PH-ITF) Fellowship and Hong Kong Research Grants Council Postdoctoral Research Fellowship until 2022. She then joined Prof. Pascal Del’Haye’s group at Max Planck Institute for the Science of Light working as a postdoctoral fellow until 2024.
Her research interests include integrated photonic chips and their applications in optical computing, optical sensing, and optical communications. She has published peer-reviewed papers in Nature Communications, Laser & Photonics Reviews, Photonics Research, ACS Photonics, Optics Express, Applied Physics Letters, etc.
News:
Oct. 23 2025: Our collaboration paper about robust turnkey soliton frequency combs using a fiber Fabry-Pérot cavity laser has been published in Opt. Express 33, 46304-46312 (2025) (JCR Q2). This work is expected to advance various microwave photonic applications that demand long-term stability and turnkey performance.
July 3 2025: Our paper about generation and control of higher-order-mode lasers in multimode silicon resonators has been published in ACS Photonics 12, 3457–3464 (2025) (JCR Q1). This work demonstrates Raman-based mode switching, which can find potential applications in high-resolution optical systems and quantum optics.
June 25 2025: Our collaboration paper about monolithic electric field control of a grating coupler for finely tuning wavelength, efficiency, and bandwidth has been published in Optics Letters 50, 4370-4373 (2025) (JCR Q2). This work proposes a PIN-PMN-PTOI based apodized grating coupler.
May. 24 2025: Our collaboration paper about microresonator soliton frequency combs via cascaded Brillouin scattering has been published in Communications Physics 8, 1-5 (2025) (JCR Q1). This work demonstrates forward-propagating soliton frequency combs using cascaded Brillouin scattering in a silica resonator.
Jan. 17 2025: Our paper about integrated optical switches from Kerr symmetry breaking has been published in Photonics Research 13, 360-366 (2025) (Editor’s pick!) (JCR Q1). Our work may provide insights into the development of new types of photonic data processing devices and provide an innovative approach for the future implementation of on-chip optical memories.
Jan. 17 2025: Our collaboration paper about on-chip microresonator dispersion engineering via segmented sidewall modulation has been published in Photonics Research 13, 367-372 (2025) (JCR Q1). These results highlight both the simplicity and efficacy of our method in achieving flatter dispersion profiles for efficient frequency combs.
Nov. 11 2024: Our paper about near‐Infrared dual‐Band frequency comb generation from a silicon resonator has been published in Laser & Photonics Reviews 19, 2301366, (2025) (JCR Q1). https://doi.org/10.1002/lpor.202301366
Oct. 1 2024: Our collaboration paper about light distribution patterns in chains of microresonators has been published in Photonics Research 10, 2376 (2024) (Editor’s pick!) (JCR Q1). This can be used to guide light through photonic circuits and for optical data processing.
Recent five-year journal publications (*corresponding author, †equal contribution):
27. Hao Zhang, Shuangyou Zhang, Toby Bi, Yaojing Zhang, Haochen Yan, Masoud Kheyri, Yongyong Zhuang, Arghadeep Pal, Jijun He, Shilong Pan, and Pascal Del’Haye, "Turnkey soliton frequency combs from a linear fiber cavity with microresonator mirror," Opt. Express 33, 46304-46312 (2025). (JCR Q2)
26. He Gao, Alekhya Ghosh, Arghadeep Pal, Keyi Zhong, Haochen Yan, Hao Zhang, Yongyong Zhuang, Ke Xu, Lu Sun, Shuangyou Zhang, Pascal Del’Haye, Wengang Bi, Hon Ki Tsang*, Yaojing Zhang*, "Generation and control of higher-order-mode lasers in multimode silicon resonators," ACS Photonics 12, 3457–3464 (2025). (JCR Q1)
25. Yifan Zhang, Yongyong Zhuang, Liu Yang, Xin Liu, Qingyuan Hu, Haochen Yan, Hao Zhang, Yaojing Zhang, Shuangyou Zhang, Pascal Del’Haye, Xiaoyong Wei, Zhuo Xu "Monolithic electric field control of a grating coupler for finely tuning wavelength, efficiency, and bandwidth," Optics Letters 50, 4370-4373 (2025). (JCR Q2)
24. Hao Zhang, Shuangyou Zhang, Toby Bi, George Ghalanos, Yaojing Zhang, Haochen Yan, Arghadeep Pal, Jijun He, Shilong Pan, Pascal Del’Haye, "Microresonator soliton frequency combs via cascaded Brillouin scattering," Communications Physics 8, 1-5 (2025). (JCR Q1)
23. Yaojing Zhang†, Shuangyou Zhang†, Alekhya Ghosh, Arghadeep Pal, George N. Ghalanos, Toby Bi, Haochen Yan, Hao Zhang, Yongyong Zhuang, Lewis Hill, and Pascal Del’Haye*, "Integrated optical switches based on Kerr symmetry breaking in microresonators," Photonics Research 13, 360-366 (2025). (Editor's Pick) (JCR Q1)
22. Masoud Kheyri, Shuangyou Zhang, Toby Bi, Arghadeep Pal, Hao Zhang, Yaojing Zhang, Abdullah Alabbadi, Haochen Yan, Alekhya Ghosh, Lewis Hill, Pablo Bianucci, Eduard Butzen, Florentina Gannott, Alexander Gumann, Irina Harder, Olga Ohletz, and Pascal Del’Haye, "On-chip microresonator dispersion engineering via segmented sidewall modulation," Photonics Research 13, 367-372 (2025). (JCR Q1)
21. Keyi Zhong†, Yaojing Zhang†,*, Shuangyou Zhang†, Yuanfei Zhang, Yuan Li, Yue Qin, Yi Wang, Jose M Chavez Boggio, Xiankai Sun, Chester Shu, Pascal Del'Haye, Hon Ki Tsang*, "Near-infrared dual-band frequency comb generation from a silicon resonator," Laser & Photonics Reviews, 19 (4), 2301366 (2025). (JCR Q1)
20. Liu Yang, Yongyong Zhuang, Yifan Zhang, Haochen Yan, Hao Zhang, Yaojing Zhang, Shuangyou Zhang, Xin Liu, Qingyuan Hu, Zhuo Xu, Pascal Del’Haye, Xiaoyong Wei, "Robustly packaged lithium niobate resonator-based temperature sensor," Journal of Optics 26, 125403 (2024). (JCR Q3)
19. Alekhya Ghosh, Arghadeep Pal, Lewis Hill, Graeme N Campbell, Toby Bi, Yaojing Zhang, Abdullah Alabbadi, Shuangyou Zhang, Gian-Luca Oppo, Pascal Del'Haye, "Controlled light distribution with coupled microresonator chains via Kerr symmetry breaking, Photonics Research 12 (10), 2376-2389 (2024). (Editor's Pick) (JCR Q1)
18. Shuangyou Zhang, Toby Bi, Irina Harder, Olga Lohse, Florentina Gannott, Alexander Gumann, Eduard Butzen, Yaojing Zhang, Pascal Del'Haye, "Room-temperature sputtered ultralow-loss silicon nitride for hybrid photonic integration," Laser & Photonics Reviews 18, 2300642 (2024). (JCR Q1)
17. Haochen Yan, Alekhya Ghosh, Arghadeep Pal, Hao Zhang, Toby Bi, George Ghalanos, Shuangyou Zhang, Lewis Hill, Yaojing Zhang, Yongyong Zhuang, Jolly Xavier, Pascal Del’Haye, "Real-time imaging of standing-wave patterns from a bi-directionally pumped microresonator", Proceedings of the National Academy of Sciences (PNAS) 121, e2313981121 (2024). (JCR Q1)
16. Liu Yang, Yongyong Zhuang, Yifan Zhang, Yaojing Zhang, Shuangyou Zhang, Zhuo Xu, Pascal Del'Haye, Xiaoyong Wei, "Electromagnetically induced transparency-like effect in a lithium niobate resonator via electronic control", Photonics Research 11, 773-779 (2023). (JCR Q1)
15. Yaojing Zhang†, Shuangyou Zhang†,*, Toby Bi, and Pascal Del'Haye*, "Geometry optimization for dark soliton combs in thin multimode silicon nitride microresonators," Optics Express 31, 41420-41427 (2023). (JCR Q2)
14. Yaojing Zhang†,*, Keyi Zhong†, and Hon Ki Tsang*, "Compact multimode silicon racetrack resonators for high-efficiency tunable Raman lasers," Applied Physics Letters 122, 081101 (2023) (2023). (JCR Q2)
13. Yaojing Zhang†,*, Keyi Zhong†, Xuetong Zhou, and Hon Ki Tsang*, "Broadband high-Q multimode silicon concentric racetrack resonators for widely tunable Raman lasers," Nature Communications 13, 1-8 (2022). (JCR Q1)
12. Yaojing Zhang*, Keyi Zhong, Wen Zhou, and Hon Ki Tsang*, "Low-threshold continuous-wave anti-Stokes Raman lasing in silicon racetrack resonators," ACS Photonics 8, 3462-3468 (2021). (JCR Q1)
11. Yaojing Zhang†,*, Gaolei Hu†, Keyi Zhong†, Wen Zhou, and Hon Ki Tsang*, "Investigation of low-power comb generation in silicon microresonators from dual pumps," Journal of Optics 23, 10LT03 (2021). (JCR Q3)
10. Yaojing Zhang†,*, Rakesh Ranjan Kumar†, Keyi Zhong, and Hon Ki Tsang, "Near-infrared frequency comb generation from a silicon microresonator," Journal of Optics 23, 10LT02 (2021). (JCR Q3)
9. Dan Yi, Wen Zhou, Yaojing Zhang, and Hon Ki Tsang, "Inverse design of multi-band and wideband waveguide crossings," Optics Letters 46, 884 (2021). (JCR Q2)
8. Dan Yi, Yaojing Zhang, and Hon Ki Tsang*, "Optimal Bezier curve transition for low-loss ultra-compact S bends," Optics Letters 46, 876 (2021). (JCR Q2)
7. Yaojing Zhang, Keyi Zhong, and Hon Ki Tsang*, "Raman lasing in multimode silicon racetrack resonators," Laser & Photonics Reviews, 2000336 (2021). (JCR Q1)
6. Yaojing Zhang, Keyi Zhong, Gaolei Hu, Dan Yi, Rakesh Ranjan Kumar, and Hon Ki Tsang*, "Sub-milliwatt optical frequency combs in dual-pumped high-Q multimode silicon resonators," Applied Physics Letters 117, 221103 (2020). (JCR Q2)
5. Dan Yi, Yaojing Zhang, Xinru Wu, and Hon Ki Tsang, "Integrated multimode waveguide with photonic lantern for speckle spectroscopy," IEEE Journal of Quantum Electronics 57, 1-8 (2020). (JCR Q3)
4. Yaojing Zhang†,*, Li Tao†, Dan Yi, Jian-Bin Xu, and Hon Ki Tsang*, "Enhanced thermo-optic nonlinearities in a MoS2-on-silicon microring resonator," Applied Physics Express 13, 022004 (2020). (JCR Q3)
3. Yaojing Zhang†,*, Li Tao†, Dan Yi, Jian-Bin Xu, and Hon Ki Tsang*, "Enhanced four-wave mixing with MoS2 on a silicon waveguide," Journal of Optics 22, 025503 (2020). (Selected as Editor's Choice) (JCR Q3)
2. Yaojing Zhang, Yifei Yao, Dan Yi, and Hon Ki Tsang*, "Radiation pressure and electrostriction induced enhancement for Kerr-like nonlinearities in a nanoscale silicon pedestal waveguide," Journal of Optics 22, 055502 (2020). (JCR Q3)
1. Rakesh Ranjan Kumar, Yi Wang, Yaojing Zhang, and Hon Ki Tsang, "Quantum states of higher-order whispering gallery modes in a silicon micro-disk resonator." JOSA B 37, 2231-2237 (2020). (JCR Q3)
