Guo-Qiang Lo
Agency for Science, Technology and Research
325 Papers
2K Citations
Guo-Qiang Lo is an academic researcher from Agency for Science, Technology and Research. The author has contributed to research in topics: Silicon photonics & Silicon. The author has an hindex of 43, co-authored 325 publications.
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Papers
Enhanced photoresponsivity in graphene-silicon slow-light photonic crystal waveguides
Hao Zhou,Hao Zhou,Tingyi Gu,James F. McMillan,Mingbin Yu,Guo-Qiang Lo,Dim-Lee Kwong,Guoying Feng,Shouhuan Zhou,Chee Wei Wong,Chee Wei Wong +10 more
TL;DR: In this article, the authors demonstrate the enhanced fast photoresponsivity in graphene hybrid structures by combining the ultrafast dynamics of graphene with improved light-matter interactions in slow-light photonic crystal waveguides.
Monolithic Polarization and Phase Diversity Coherent Receiver in Silicon
Christopher Richard Doerr,Peter J. Winzer,Young-Kai Chen,Sethumadhavan Chandrasekhar,Mahmoud Rasras,L. Chen,Tsung-Yang Liow,Kah-Wee Ang,Guo-Qiang Lo +8 more
TL;DR: In this paper, a monolithic silicon photonic integrated circuit (PIC) for polarization and phase diversity coherent detection was realized, which includes two polarization beam splitters, two 90° optical hybrids, and four pairs of balanced photodiodes implemented as integrated germanium detectors.
Highly linear silicon traveling wave Mach-Zehnder carrier depletion modulator based on differential drive.
Matthew Streshinsky,Ali Ayazi,Zhe Xuan,Andy Eu-Jin Lim,Guo-Qiang Lo,Tom Baehr-Jones,Michael Hochberg +6 more
TL;DR: Measurements of the nonlinear distortions of a traveling-wave silicon Mach-Zehnder modulator based on the carrier depletion effect suggest silicon may be a suitable platform for analog optical applications and show that the linearity of a silicon traveling wave Mach- Zehndermodulator can be improved by differentially driving it.
Through-Si-via (TSV) Keep-Out-Zone (KOZ) in SOI Photonics Interposer: A Study of the Impact of TSV-Induced Stress on Si Ring Resonators
TL;DR: In this paper, the authors proposed a TSV keep-out-zone for the Si photonic ring resonator and a compact scaling of the SOI photonics interposer.
Surface illuminated interdigitated Ge-on-Si photodetector with high responsivity
Yuxuan Li,Xiaobin Liu,Xuetong Li,Shuai Wang,Han Ye,Lanxuan Zhang,Yingzhi Li,Shengxian Sun,Baisong Chen,Yao Ma,Pengfei Guo,Fengli Gao,Xueyan Li,Guo-Qiang Lo,Junfeng Song +14 more
TL;DR: A large-size interdigitated "finger-type" germanium-on-silicon (Ge- on-Si) photodetector (PD) based on the surface illumination approach that can be applied in weak light detection condition is proposed.