Article
Engineering, Electrical & Electronic
Qian Hu, Robert Borkowski, Yannick Lefevre, Junho Cho, Fred Buchali, Rene Bonk, Karsten Schuh, Eva De Leo, Patrick Habegger, Marcel Destraz, Nino Del Medico, Hamit Duran, Valentino Tedaldi, Christian Funck, Yuriy Fedoryshyn, Juerg Leuthold, Wolfgang Heni, Benedikt Baeuerle, Claudia Hoessbacher
Summary: This article summarizes the experimental exploration of an ultrabroad-bandwidth plasmonic Mach-Zehnder modulator in a short-reach optical transmission system. The modulation, transmission, and reception performance under different schemes are studied, and specific bit rates are provided.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Yuhang Hu, Zihao Yang, Nuo Chen, Hanwen Hu, Bowen Zhang, Haofan Yang, Xinda Lu, Xinliang Zhang, Jing Xu
Summary: The information capacity of single-mode fiber communication systems is limited by optical nonlinearities. Spatial division multiplexing (SDM) and all-optical signal processing (AOSP) offer new opportunities for upgrading fiber communication systems and improving the capacity of signal processing applications.
Article
Engineering, Electrical & Electronic
Ying Zhao, Li Chen, Ricardo Aroca, Ninghui Zhu, Dinh Ton, David Inglis, Christopher R. Doerr
Summary: We present a silicon photonic based stacked die assembly compatible with the commercial CMOS process, which is designed for a 4x200-Gbit/s parallel single-mode fiber transmission system. PAM-8 is identified as a promising candidate for 200-Gbit/s transmission in single lane. The receiver sensitivity is enhanced without using expensive optical amplifier, achieving net 200-Gbit/s transmission over 10 km.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Changmin Lee, Mohamed Sufyan Islim, Sovan Das, Adrian Spark, Stefan Videv, Paul Rudy, Binith Shah, Melvin McLaurin, Harald Haas, James Raring
Summary: This study demonstrates a high-speed visible light communication system using ultra-bright laser-based white light sources. With a combination of blue and infrared lasers, data transmission rates of up to 25 Gbit/s have been achieved.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Correction
Engineering, Electrical & Electronic
Xuebing Zhang, Zizheng Cao, Juhao Li, Dawei Ge, Zhangyuan Chen, Ivo M. Vellekoop, Antonius M. J. Koonen
Summary: Professor Nabeel A. Riza's laboratory theoretically proposed an NLOS indoor optical wireless communications arrangement with diffuse reflections from diffuse optical elements. Our proposed CAO-Tx can focus reflections onto the receiver rather than scatter them in all directions, which would greatly benefit this type of arrangement. We apologize for omitting this prior art.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Xiaoan Huang, Dongxu Zhang, Xiaofeng Hu, Chenhui Ye, Kaibin Zhang
Summary: This paper investigates the transmission of 100-Gbit/s/λ intensity modulation and direct detection passive optical network using four-level pulsed amplitude modulation. A low-complexity recurrent neural network equalizer is proposed to mitigate distortions caused by interference and fiber nonlinearity. Experimental results show that the proposed equalizer outperforms a fully-connected neural network, and an 8bits-integer-quantized neural network model is implemented using FPGA.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Hai-Han Lu, Chung-Yi Li, Wen-Shing Tsai, Poh-Suan Chang, Yan-Yu Lin, Yu-Ting Chen, Chen-Xuan Liu, Ting Ko
Summary: This study successfully constructs a two-way fibre-FSO converged system through 25 km single-mode fibre and 500 m free-space transmission. By incorporating dual-wavelength four-level pulse amplitude modulation and polarisation-multiplexing mechanism, the transmission capacity is significantly enhanced to 224 Gbit/s with excellent transmission performance.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Electrical & Electronic
Shigeru Kanazawa, Takahiko Shindo, Mingchen Chen, Naoki Fujiwara, Masahiro Nada, Toshihide Yoshimatsu, Atsushi Kanda, Yasuhiko Nakanishi, Fumito Nakajima, Kimikazu Sano, Yozo Ishikawa, Kazuyo Mizuno, Hideaki Matsuzaki
Summary: Through the design and fabrication of an AXEL sub-assembly and a 4-channel AXEL TOSA, a narrow sub-assembly with a width of only 0.65 mm and with a 3-dB bandwidth of more than 40 GHz was achieved, along with the production of a TOSA suitable for a QSFP-DD transceiver. Extensive testing showed excellent performance of the TOSA, meeting all required specifications.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Yannik Horst, Tobias Blatter, Laurenz Kulmer, Bertold Ian Bitachon, Benedikt Baeuerle, Marcel Destraz, Wolfgang Heni, Stefan Koepfli, Patrick Habegger, Marco Eppenberger, Eva de Leo, Claudia Hoessbacher, Delwin L. Elder, Scott R. Hammond, Lewis E. Johnson, Larry R. Dalton, Yuriy Fedoryshyn, Yannick Salamin, Maurizio Burla, Juerg Leuthold
Summary: A novel transparent optical subTHz-optical link is demonstrated, achieving high data transmission rates and showcasing direct conversion and mapping techniques for signals.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Jyun-Yang Su, Kuo-Fang Chung, Shih-Chun Kao, Chih-Hsien Cheng, Cheng-Ting Tsai, Te-Hua Liu, Hao-Tien Cheng, Chao-Hsin Wu, Tien-Tsorng Shih, Ding-Wei Huang, Gong-Ru Lin
Summary: The characteristics of O-band germanium p-i-n waveguide photodetector (WPD) were analyzed, and the results showed that optimizing the transmission-line design can improve the response speed and receiving bandwidth. By reducing the transmission-line length and decreasing the inductance of the contact electrode, the performance of the photodetector can be significantly improved.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Optics
Ji Wang, Li Pei, Jianshuai Wang, Zuliang Ruan, Tigang Ning, Jing Li, Jingjing Zheng, Guobin Ren
Summary: The proposed graphene-coated double D-type low loss all-fiber modulator achieves low loss and high efficiency modulation process through improvement on standard fiber.
Article
Engineering, Electrical & Electronic
Stefano Grillanda, Cuong Tran, Di Che, Ting-Chen Hu, Nagesh Basavanhally, Rick Papazian, Rose Kopf, Alaric Tate, Mark Cappuzzo, Mark Earnshaw, K. W. Kim, Gregory Raybon, David Neilson, Patrick Iannone
Summary: In this work, we integrate a 4-channel array of surface-normal electro-absorption modulators (SNEAMs) with a 4-channel array of electronic drivers with low output voltage. We demonstrate 4 x 53 Gbit/s non-return-to-zero on-off-keying transmission over 2 km of standard single mode fiber using this integrated SNEAM-driver array electro-optic engine. The integration of a SNEAM array with a low output voltage driver array represents a significant milestone towards optical modules based on SNEAMs.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Heng Li, Lane Luo, Mingzhi Lu, Quanan Chen, Jin Yu, Rui Huang, Jiangen He, Yongqian Tang, Allen Zheng, Zuxin Zhong, Celia Lei, Hua Liu, Xiaohan Li, Xiangyang Dai, Lirong Huang, Qiaoyin Lu, Weihua Guo
Summary: This paper presents a PAM4-modulated 800G QSFP-DD transceiver integrated with two 4 x 100G DR4 modulator chips. The transceiver meets the 400GBASE-DR4 standards and packaging requirements. This is the first reported use of a 4 x 100G DR4 modulator array based on TFLN and an 800G QSFP-DD transceiver based on TFLN.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Mohammed Alaloul, Jacob B. Khurgin
Summary: This article presents a practical design of an all-optical modulator based on graphene and hexagonal boron nitride (hBN) heterostructures. The interaction between graphene and guided light is enhanced by nanophotonic means, achieving high extinction ratio, low insertion loss, and energy-efficient switching. The device exhibits ultrafast switching with short recovery time and has the potential to be a high-performance all-optical modulator with ultra-high bandwidth. It is expected to meet the needs of next-generation photonic computing systems.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Mohamed Hosni, Karanveer Singh, Sourav Dev, Arezoo Zarif, Stefan Preussler, Ayman M. Mokhtar, Kambiz Jamshidi, Thomas Schneider
Summary: This study presents the optical sampling of microwave signals using a silicon photonics ring modulator with sinc-pulse sequences. By time interleaving, it achieves ultra-compact photonic integrated analog to digital converters with high sampling rate and analog bandwidth.
IEEE PHOTONICS JOURNAL
(2022)
Article
Optics
David Gonzalez-Andrade, Diego Perez-Galacho, Miguel Montesinos-Ballester, Xavier Le Roux, Eric Cassan, Delphine Marris-Morini, Pavel Cheben, Nathalie Vulliet, Stephane Monfray, Frederic Boeuf, Laurent Vivien, Aitor V. Velasco, Carlos Alonso-Ramos
Summary: This study demonstrates the realization of an efficient dual-band grating coupler fabricated using 193 nm deep-ultraviolet lithography for 10 Gbit symmetric passive optical networks. The device has a small footprint and high coupling efficiencies at different wavelengths.
Review
Nanoscience & Nanotechnology
Daniel Benedikovic, Leopold Virot, Guy Aubin, Jean-Michel Hartmann, Farah Amar, Xavier Le Roux, Carlos Alonso-Ramos, Eric Cassan, Delphine Marris-Morini, Jean-Marc Fedeli, Frederic Boeuf, Bertrand Szelag, Laurent Vivien
Summary: Integrated silicon nanophotonics is a rapidly growing field impacting various aspects of daily life. However, challenges such as silicon's indirect bandgap and centrosymmetric lattice hinder the realization of essential functionalities. Germanium and its alloys are seen as suitable candidates to address these challenges and are increasingly used in nanophotonic devices.
Editorial Material
Engineering, Electrical & Electronic
Laurent Vivien, Delphine Marris-Morini, Carlos Alonso Ramos, Eric Cassan, Pavel Cheben, Andrea Melloni, Fabrice Raineri
IEEE JOURNAL OF QUANTUM ELECTRONICS
(2021)
Article
Optics
David Gonzalez-Andrade, Thi Thuy Duong Dinh, Sylvain Guerber, Nathalie Vulliet, Sebastien Cremer, Stephane Monfray, Eric Cassan, Delphine Marris-Morini, Frederic Boeuf, Pavel Cheben, Laurent Vivien, Aitor V. Velasco, Carlos Alonso-Ramos
Summary: This research demonstrates a broadband silicon nitride SHFT spectrometer with a large optical throughput and high resolution, making it a promising tool for applications such as biological analysis, environmental monitoring, and remote sensing.
Article
Optics
Lucas Deniel, Erwan Weckenmann, Diego Perez Galacho, Christian Lafforgue, Stephane Monfray, Carlos Alonso-Ramos, Laurent Bramerie, Frederic Boeuf, Laurent Viven, Delphine Marris-Morini
Summary: This article studies two different architectures based on silicon modulators, optimizes their driving schemes through time to frequency conversion principle, simulates and compares their performances, and achieves a total of nine lines within a 2 dB flatness.
PHOTONICS RESEARCH
(2021)
Article
Nanoscience & Nanotechnology
Miguel Montesinos-Ballester, Lucas Deniel, Natnicha Koompai, Thi Hao Nhi Nguyen, Jacopo Frigerio, Andrea Ballabio, Virginia Falcone, Xavier Le Roux, Carlos Alonso-Ramos, Laurent Vivien, Adel Bousseksou, Giovanni Isella, Delphine Marris-Morini
Summary: Mid-infrared spectroscopy is crucial for identifying molecular species, and integrated modulators are expected to have a significant impact in sensing applications. This work demonstrates a broadband integrated electro-optic modulator, paving the way for the development of multi-molecular on-chip spectroscopic systems operating at the longest mid-infrared wavelengths.
Article
Chemistry, Multidisciplinary
Vladyslav Vakarin, Daniele Melati, Thi Thuy Duong Dinh, Xavier Le Roux, Warren Kut King Kan, Cecilia Dupre, Bertrand Szelag, Stephane Monfray, Frederic Boeuf, Pavel Cheben, Eric Cassan, Delphine Marris-Morini, Laurent Vivien, Carlos Alberto Alonso-Ramos
Summary: Subwavelength grating (SWG) metamaterials have attracted great interest for their ability to shape material properties and light propagation, but practical implementations are limited by fabrication constraints. By using deep-ultraviolet lithography, an SWG metamaterial engineered beam splitter was successfully fabricated in silicon-on-insulator technology, demonstrating high performance and opening up new possibilities for scalable silicon photonic circuits.
Review
Optics
Christian Lafforgue, Miguel Montesinos-Ballester, Thi-Thuy-Duong Dinh, Xavier Le Roux, Eric Cassan, Delphine Marris-Morini, Carlos Alonso-Ramos, Laurent Vivien
Summary: This article provides an overview of supercontinuum generation in silicon-compatible photonics platforms, including silicon, silicon germanium, and silicon nitride, as well as the essential theoretical elements to understand this phenomenon.
PHOTONICS RESEARCH
(2022)
Article
Engineering, Electrical & Electronic
Alicia Ruiz-Caridad, Guillaume Marcaud, Elena Duran-Valdeiglesias, Joan Manel Ramirez, Jianhao Zhang, Carlos Alonso-Ramos, Xavier LeRoux, Ludovic Largeau, Samuel Serna, Nicolas Dubreuil, Sylvia Matzen, Thomas Maroutian, Philippe Lecoeur, Delphine Marris-Morini, Eric Cassan, Laurent Vivien
Summary: The hybrid integration of new materials is crucial for the advancement of photonics, enabling the development of high-performance devices with innovative functions. This article reviews recent research on the hybrid integration of Yttria-Stabilized Zirconia (YSZ), a crystalline oxide with a wide transparency range and moderate refractive index. The potential of YSZ in photonics is demonstrated through the development of low-loss waveguides and complex passive structures, as well as the implementation of Er3+ ions for outstanding luminescence in telecommunications.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Daniel Benedikovic, Leopold Virot, Guy Aubin, Jean-Michel Hartmann, Farah Amar, Xavier Le Roux, Carlos Alonso-Ramos, Eric Cassan, Delphine Marris-Morini, Frederic Boeuf, Jean-Marc Fedeli, Bertrand Szelag, Laurent Vivien
Summary: This study comprehensively investigates the performance of avalanche p-i-n photodetectors with lateral silicon-germanium-silicon heterojunctions and demonstrates their reliable opto-electrical performance and low energy consumption. These findings pave the way for high-performing receivers for energy-aware data links in next-generation short-distance data communications.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2022)
Article
Nanoscience & Nanotechnology
Jianhao Zhang, Paula Nuno Ruano, Xavier Le-Roux, Miguel Montesinos-Ballester, Delphine Marris-Morini, Eric Cassan, Laurent Vivien, Norberto Daniel Lanzillotti-Kimura, Carlos Alonso Ramos
Summary: This research demonstrates a new opto-mechanical confinement approach that utilizes subwavelength structuration of silicon to tightly confine photons and phonons in non-suspended silicon waveguides, fully compatible with standard silicon photonics. Experimental results show high-quality optical excitation and readout of mechanical modes in optomechanical microresonators under ambient conditions and room temperature.
Proceedings Paper
Engineering, Electrical & Electronic
Daniel Benedikovic, Leopold Virot, Guy Aubin, Jean-Michel Hartmann, Farah Amar, Bertrand Szelag, Xavier Le Roux, Carlos Alonso-Ramos, Paul Crozat, Eric Cassan, Frederic Boeuf, Jean-Marc Fedeli, Christophe Kopp, Laurent Vivien, Delphine Marris-Morini
Summary: Integrated silicon nanophotonics has shown significant progress in various applications such as optoelectronics and communication technologies. Germanium-based photodetectors offer high performance and low cost, making them suitable for next-generation on-chip interconnections and high-speed optical interconnects.
INTEGRATED OPTICS: DESIGN, DEVICES, SYSTEMS AND APPLICATIONS VI
(2021)
Article
Nanoscience & Nanotechnology
Miguel Montesinos-Ballester, Lucas Deniel, Natnicha Koompai, Thi Hao Nhi Nguyen, Jacopo Frigerio, Andrea Ballabio, Virginia Falcone, Xavier Le Roux, Carlos Alonso-Ramos, Laurent Vivien, Adel Bousseksou, Giovanni Isella, Delphine Marris-Morini
Summary: The research team has achieved a broadband integrated electro-optic modulator based on the SiGe photonics platform and the free-carrier plasma dispersion effect, capable of optical modulation in the range of 6.4 to 10.7 micrometers, with an operational frequency up to 225 MHz.
