Laser integration in silicon photonics has been tackled by heterogeneous integration with compound III-V materials. The availability of ultra-low-loss silicon nitride waveguides offer the possibilities in enabling ultra low noise lasers, through self-injection locking of lasers with ultra-high-Q microresonators.
We report that, using 3D integration we can effectively combine the high-performance lasers with ultra-low-loss photonic integrated circuits. This technology resulted in Hertz-linewidth lasers with strong resistance to downstream feedbacks.
An invited speaker presentation by Chao Xiang, Assistant Professor at the Department of Electrical and Electronic Engineering (EEE), the University of Hong Kong (HKU).
About Chao Xiang
Dr. Chao Xiang is currently an Assistant Professor at the Department of Electrical and Electronic Engineering (EEE), the University of Hong Kong (HKU). His group (Photonic Integrated Circuits Laboratory, PIXlab) focuses on but not limited to heterogeneous photonic integration, silicon photonics, semiconductor lasers and photonic integrated circuits. Before joining HKU, he was a Postdoctoral Scholar and obtained his Ph.D. degree both at University of California, Santa Barbara. He obtained his B.E degree from Huazhong University of Science and Technology and M.Phil. degree from the Chinese University of Hong Kong.
About The University of Hong Kong
The University of Hong Kong, Asia’s Global University, delivers impact through internationalisation, innovation and interdisciplinarity. It attracts and nurtures global scholars through excellence in research, teaching and learning, and knowledge exchange. It makes a positive social contribution through global presence, regional significance and engagement with the rest of China.
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Chao Xiang is invited speaker at the 2024 edition of the European Conference on Integrated Optics.