Article
Optics
An He, Yiou Cui, Jinlong Xiang, Wenqi Wei, Zihao Wang, Ting Wang, Xuhan Guo, Yikai Su
Summary: Silicon photonics is a competitive technology for addressing power and speed issues in data centers and computing systems. However, the lack of an on-chip light source limits its widespread applicability. This study demonstrates two compact edge couplers with ultra-low coupling loss, enabling efficient light transmission from a Si-based III-V laser to a Si3N4 waveguide. The achieved ultra-low laser-to-chip coupling loss of only 1.175 dB presents a promising strategy for realizing high-density and large-scale SiPh integration.
LASER & PHOTONICS REVIEWS
(2023)
Article
Engineering, Electrical & Electronic
Jia Xu Brian Sia, Xiang Li, Wanjun Wang, Zhongliang Qiao, X. Guo, Jiawei Wang, Callum G. Littlejohns, Chongyang Liu, Graham T. Reed, Kian Siong Ang, Hong Wang
Summary: The 2 mu m waveband shows potential for pervasive applications, but high water absorption poses a challenge that requires the development of novel laser sources. The research team successfully demonstrated a III-V/Si hybrid tunable laser for the first time, operating within the low water absorption window.
IEEE PHOTONICS JOURNAL
(2021)
Article
Physics, Applied
N. V. Kryzhanovskaya, K. A. Ivanov, N. A. Fominykh, S. D. Komarov, I. S. Makhov, E. I. Moiseev, J. A. Guseva, M. M. Kulagina, S. A. Mintairov, N. A. Kalyuzhnyy, A. I. Lihachev, R. A. Khabibullin, R. R. Galiev, A. Yu. Pavlov, K. N. Tomosh, M. V. Maximov, A. E. Zhukov
Summary: This study reports on the lateral connection of InGaAs/GaAs quantum dot injection microdisk lasers with a bus waveguide using planar technology. Different coupling schemes were studied, and it was found that the coupling with the waveguide resulted in an increase in resonator loss and a decrease in the number of resonance lines. Additionally, efficient light outcoupling was demonstrated for continuous wave operating microdisk lasers at high temperatures.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Optics
Q. Li, C. P. Ho, H. Tang, M. Okano, K. Ikeda, S. Takagi, M. Takenaka
Summary: A novel Si racetrack optical modulator integrated with a III-V/Si hybrid MOS optical phase shifter was fabricated with advantages of miniaturization, low energy consumption, and high modulation bandwidth.
Article
Optics
Ya Han, Xian Zhang, Fujin Huang, Xiaoyue Liu, Mengyue Xu, Zhongjin Lin, Mingbo He, Siyuan Yu, Ruijun Wang, Xinlun Cai
Summary: This research presents an electrically pumped hybrid lithium niobate/III-V laser with a Vernier filter for wavelength selection, achieving a wavelength tuning range of over 36 nm in the O band and a high side mode suppression ratio.
Article
Energy & Fuels
Gael Nardin, Cesar Dominguez, Alvaro Fernando Aguilar, Laetitia Anglade, Mathilde Duchemin, David Schuppisser, Florian Gerlich, Mathieu Ackermann, Laurent Coulot, Blaise Cuenod, Delphine Petri, Xavier Niquille, Nicolas Badel, Agata Lachowicz, Matthieu Despeisse, Jacques Levrat, Christophe Ballif, Stephen Askins, Ruben Nunez, Norman Jost, Guido Vallerotto, Ignacio Anton
Summary: The module utilizes biconvex lens arrays and micro-tracking mechanism to harvest direct, diffuse, and albedo irradiance with high efficiency and flexibility in architecture choices for various applications. The module shows promising potential for future use in agrivoltaics and offers additional energy yield in different scenarios.
PROGRESS IN PHOTOVOLTAICS
(2021)
Article
Multidisciplinary Sciences
Pengyan Wen, Preksha Tiwari, Svenja Mauthe, Heinz Schmid, Marilyne Sousa, Markus Scherrer, Michael Baumann, Bertold Ian Bitachon, Juerg Leuthold, Bernd Gotsmann, Kirsten E. Moselund
Summary: This study successfully achieved the seamless integration of III-V nanostructures on silicon and demonstrated the performance of scaled and waveguide coupled III-V photodiodes. Furthermore, it was found that the temperature increase during device operation as an emitter was only approximately 15 K according to experimental and simulation results.
NATURE COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Qiang Li, Shawn Yohanes Siew, Bo Li, Xianshu Luo, Guo-Qiang Lo
Summary: This study proposes a traveling-wave III-V/Si hybrid MOS optical modulator, which achieves high modulation bandwidth by optimizing the electrode geometry, doping concentration, and equivalent oxide thickness for velocity and impedance matching. The predicted high modulation bandwidth in different modes is of great importance for high-speed optical transmission.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2022)
Article
Optics
Xinya Wang, Xiaoming Yu, Matthew J. Berg, Pingping Chen, Brice Lacroix, Sasan Fathpour, Shuting Lei
Summary: For the first time, direct writing of curved optical waveguides in monocrystalline silicon with curve radii from 2 mm to 6 cm has been demonstrated. Bending loss of the curved waveguides was measured and found to agree well with theoretical values. Raman spectroscopy measurements suggest the formation of inhomogeneous amorphous and polycrystalline phases in the laser-modified region.
Article
Optics
Nouman Zia, Heidi Tuorila, Jukka Viheriala, Samu-Pekka Ojanen, Eero Koivusalo, Joonas Hilska, Mircea Guina
Summary: This research demonstrates for the first time the flip-chip integration of a GaSb semiconductor optical amplifier with a silicon photonic circuit, addressing the transition of photonic integration technology towards mid-IR wavelengths. Through wavelength locking and low loss coupling achieved using silicon-on-insulator technology, a promising perspective for the on-chip silicon photonics integration of GaSb gain chips from 1.8 μm to beyond 3 μm is opened up.
Article
Materials Science, Multidisciplinary
Xingliang Li, He Wang, Wudi Zhang, Renjie Li, Ningyu Ren, Sanlong Wang, Yuxiang Li, Qiaojiao Zou, Wei Han, Qixing Zhang, Guofu Hou, Qian Huang, Shengzhi Xu, Chaohua Zhang, Qiang Sun, Ying Zhao, Xiaodan Zhang
Summary: The use of a transparent conductive adhesive (TCA) successfully enables bonding in III-V/silicon tandem solar cells, providing a new solution to the challenge of vacuum bonding in industrialized micron-sized pyramid silicon cells. The TCA exhibits low contact resistance, high transmittance, and good stability, showing great potential in enhancing the performance of solar cells.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Engineering, Electrical & Electronic
Changpeng Li, Shaoshuai Sui, Feng Gao, Yiming Wang, Xiao Xu, Jia Zhao
Summary: We present a widely wavelength tunable laser (III-V/Si) that covers the entire L-band for optical communication systems. By optimizing the design of the silicon ring filter, we achieve low threshold current and high output power. We fabricate a silicon filter chip using the standard silicon photonic process and package it compactly with a reflective semiconductor optical amplifier. The experimental results demonstrate a large wavelength tuning range, high side-mode suppression ratio, and potential for coherent communications.
IEEE JOURNAL OF QUANTUM ELECTRONICS
(2023)
Article
Optics
Zhaoyang Chen, Wenxu Han, Tingting Lang, Xiaowei Guan
Summary: This paper proposes a novel type of waveguides called slot hybrid-core waveguides (HCWs) for temperature-independent integrated optical sensors. The HCWs are composed of different core materials with opposite thermo-optic coefficients (TOCs), which makes them immune to temperature variations. Based on this, slot HCWs are proposed for microring resonator-based optical sensors, enabling the sensors to have high sensitivities and temperature independence simultaneously.
Article
Optics
Ya Han, Xian Zhang, Rui Ma, Mengyue Xu, Heyun Tan, Jie Liu, Ruijun Wang, Siyuan Yu, Xinlun Cai
Summary: The increasing traffic has driven the demand for compact, high-speed, and low-power-consumption optical transmitters. In this study, a widely tunable optical transmitter based on a thin-film lithium niobite platform is demonstrated, and its performance characteristics are presented.
Article
Engineering, Electrical & Electronic
Yasmine Ibrahimi, Sylvain Boust, Quentin Wilmart, Jean-Francois Paret, Alexandre Garreau, Karim Mekhazni, Catherin Fortin, Francois Duport, Ghaya Baili, Phlippe Charbonnier, Fabrice Blache, Harry Gariah, Stephanie Garcia, Laurent Vivien, Frederic van Djik
Summary: Optical frequency combs are highly important in applications such as LIDAR and RADAR systems, metrology, telecommunication, and spectroscopy. Integrated mode-locked lasers offer advantages over bulk counterparts in terms of cost, size, and system integration. This study focuses on a III-V/Si3N4 hybrid integrated mode-locked laser for RADAR applications, acting as a frequency bank in the RF domain. The low-loss silicon nitride waveguides enable low noise operation with a very low repetition rate of 364 MHz, providing high precision in RF frequency generation. The study demonstrates passive and harmonic mode locking, along with improved electrical modulation efficiency in the active chip.
IEEE JOURNAL OF QUANTUM ELECTRONICS
(2023)
Article
Optics
Zejie Yu, Aosong Feng, Xiang Xi, Xiankai Sun
Article
Engineering, Electrical & Electronic
Wen Zhou, Zhenzhou Cheng, Xia Chen, Ke Xu, Xiankai Sun, HonKi Tsang
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2019)
Article
Physics, Applied
Wen Zhou, Yeyu Tong, Xiankai Sun, Hon Ki Tsang
JOURNAL OF APPLIED PHYSICS
(2019)
Article
Optics
Jingwen Ma, Xiang Xi, Xiankai Sun
LASER & PHOTONICS REVIEWS
(2019)
Article
Materials Science, Multidisciplinary
Zejie Yu, Yi Wang, Beilei Sun, Yeyu Tong, Jian-Bin Xu, Hon Ki Tsang, Xiankai Sun
ADVANCED OPTICAL MATERIALS
(2019)
Article
Optics
Zejie Yu, Xiang Xi, Jingwen Ma, Hon Ki Tsang, Chang-Ling Zou, Xiankai Sun
Article
Engineering, Electrical & Electronic
Wen Zhou, Yeyu Tong, Xiankai Sun, Hon Ki Tsang
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2020)
Article
Optics
Xiang Xi, Zefeng Chen, Jian-Bin Xu, Xiankai Sun
Article
Optics
Zejie Yu, Xiankai Sun
LIGHT-SCIENCE & APPLICATIONS
(2020)
Article
Physics, Applied
Yi Wang, Zejie Yu, Yeyu Tong, Beilei Sun, Zunyue Zhang, Jian-Bin Xu, Xiankai Sun, Hon Ki Tsang
APPLIED PHYSICS LETTERS
(2020)
Article
Multidisciplinary Sciences
Zejie Yu, Yeyu Tong, Hon Ki Tsang, Xiankai Sun
NATURE COMMUNICATIONS
(2020)
Article
Physics, Applied
Ziyao Feng, Xiankai Sun
PHYSICAL REVIEW APPLIED
(2020)
Article
Engineering, Electrical & Electronic
Jingwen Ma, Ziyao Feng, Yuan Li, Xiankai Sun
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2020)
Article
Optics
Xiang Xi, Jingwen Ma, Xiankai Sun
Proceedings Paper
Optics
Zejie Yu, Wen Zhou, Hon Ki Tsang, Xiankai Sun
SMART PHOTONIC AND OPTOELECTRONIC INTEGRATED CIRCUITS XX
(2018)
