Xianshu Luo

Publications : 142
Aldex : 30
H-index : 20
Citations : 1594

Novel integration technique for silicon/III-V hybrid laser

Po Dong, Alaric Tate et 8 al.

Oct 21, 2014 in Optics Express
Integrated semiconductor lasers on silicon are one of the most crucial devices to enable low-cost silicon photonic integrated circuits for high-bandwidth optic communications and interconnects. While optical amplifiers and lasers are typically realized in III-V waveguide structures, it is beneficial to have an integration approach which allows flexible and efficient coupling of light between III-V...


Micromachines, Vol. 13, Pages 1925: Thermo Optic Phase Shifter with Interleaved Suspended Design for Power Efficiency and Speed Adjustment

Feng Gao, Guo-Qiang Lo et 6 al.

Nov 8, 2022 in Micromachines
Micromachines, Vol. 13, Pages 1925: Thermo Optic Phase Shifter with Interleaved Suspended Design for Power Efficiency and Speed Adjustment Micromachines doi: 10.3390/mi13111925 Authors: Feng Gao Wu Xie James You Sian Tan Chew Ping Leong Chao Li Xianshu Luo Guo Qiang Lo Conventional thermo optic devices—which can be broadly categorized to that with and without a thermal isolation trench—typically...

Monolithically integrated, broadband, high-efficiency silicon nitride-on-silicon waveguide photodetectors in a visible-light integrated photonics platform

Yiding Lin et 11 al.

Mar 22, 2022 in Arxiv
Visible and near-infrared spectrum photonic integrated circuits are quickly becoming a key technology to address the scaling challenges in quantum information and biosensing. Thus far, integrated photonic platforms in this spectral range have lacked integrated photodetectors. Here, we report the first silicon nitride-on-silicon waveguide photodetectors that are monolithically integrated in a visib...

Monolithically integrated MEMS cantilevers with embedded waveguides for visible light beam-scanning

Saeed Sharif Azadeh et 14 al.

Jul 25, 2022 in Arxiv
Beam-forming in the visible spectrum has important applications in, for example, fluorescence microscopy, quantum information processing, and holographic displays. For infrared light, photonic integrated circuit 16 (PIC) beam-scanners are often optical phased arrays (OPAs) that steer a light beam using wavelength tuning and/or phase shifters. For visible light, OPAs are significantly more challeng...

Germanium on silicon avalanche photodiode for 1550 nm weak light signal detection at room temperature

Yuxuan Li, Junfeng Song et 16 al.

Jun 10, 2022 in Chinese Optics Letters
To optimize the dark current characteristic and detection efficiency of the 1550 nm weak light signal at room temperature, this work ...

Broadband high-efficiency SiN-on-Si waveguide photodetectors in a visible-spectrum integrated photonic platform

Yiding Lin et 8 al.

Mar 22, 2022 in Arxiv
Integrated high-efficiency waveguide photodetectors operating in the visible spectrum are indispensable to a growing number of photonic-integrated circuit (PIC) applications. Prior developments are either incompatible with PIC integration or limited to discrete operating wavelengths. Here, we demonstrate silicon nitride-on-silicon (SiN-on-Si), broadband, high-efficiency waveguide photodiodes reali...

Low-loss broadband bi-layer edge couplers for visible light.

Yiding Lin et 10 al.

Oct 11, 2021 in Optics express
Low-loss broadband fiber-to-chip coupling is currently challenging for visible-light photonic-integrated circuits (PICs) that need both high confinement waveguides for high-density integration and a minimum feature size above foundry lithographical limit. Here, we demonstrate bi-layer silicon nitride (SiN) edge couplers that have ≤ 4 dB/facet coupling loss with the Nufern S405-XP fiber over a broa...

A photonic chip-based machine learning approach for the prediction of molecular properties

Jonathan Wei Zhong Lau, Ai Qun Liu et 9 al.

Mar 3, 2022 in Arxiv
Machine learning methods have revolutionized the discovery process of new molecules and materials. However, the intensive training process of neural networks for molecules with ever increasing complexity has resulted in exponential growth in computation cost, leading to long simulation time and high energy consumption. Photonic chip technology offers an alternative platform for implementing neural...

Power-Efficient Silicon Nitride Thermo-Optic Phase Shifters for Visible Light

Zheng Yong et 10 al.

Nov 15, 2021 in Arxiv
We demonstrate power-efficient, thermo-optic, silicon nitride waveguide phase shifters for blue, green, and yellow wavelengths. The phase shifters operated with low power consumption due to a suspended structure and multi-pass waveguide design. The devices were fabricated on 200-mm silicon wafers using deep ultraviolet lithography as part of an active visible-light integrated photonics platform. T...

Power efficient silicon nitride thermo optic phase shifters for visible light

Zheng Yong et 10 al.

Feb 28, 2022 in Optics Express
We demonstrate power efficient, thermo optic, silicon nitride waveguide phase shifters for blue, green, and yellow wavelengths. The phase ...

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