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IEEE International conference on Plasma Science (ICOPS)

作者： S.-J. Park J.G. Eden Department of Electrical and Computer Engineering University of Illinois at Urbana-Champaign Urbana Illinois United States of America Eden Park Illumination Inc. Champaign Illinois United States of America

Low-temperature microplasmas are efficient sources of ions, electrons, active species, and photons. In particular, photon generation of microcavity plasma arrays offers differentiated performance in various photonics applications that were previously unavailable. In this paper, we will discuss recent developments in microplasma photonics in three areas.

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Integration of a Miniature Multichannel Laser Diode Chip to a Silicon photonics Integrated Circuit Using Laser-Assisted Bonding

Integration of a Miniature Multichannel Laser Diode Chip to ...

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IMAPS Nordic conference on microelectronics Packaging (NordPac)

作者： Aleksandr vlasov Santeri Lehtinen Evgenii Lepukhov Heikki virtanen Samu-Pekka Ojanen Jukka viheriälä Mircea Guina Optoelectronics Research Center Physics unit Faculty of Engineering and Natural Sciences (ENS) Tampere University Tampere Finland

ISBN: (数字)9789189896932

ISBN: (纸本)9798350355536

The advancement of hybrid integration technology for smaller electronics and photonics systems is exerting increased pressure on the development of new automated processes that enable reliable integration with high throughput. Simultaneously, the integration density and diversity of components in a package, including Micro-Electro-Mechanical Systems (MEMS), wafer-level optics, alongside photonics and III/v optoelectronics, are also on the rise. To address these evolving needs, a novel integration approach based on laser-assisted bonding (LAB) is presented here. In this work, the developed LAB setup employs an original bottom illumination/irradiation architecture, coupled with simultaneous imaging through silicon, facilitating high-precision alignment for photonics waveguides. Moreover, the Automated Power Control of a LAB process enables overheat protection for the bonded surfaces, thereby enhancing the reliability and repeatability of the integration process. In a practical demonstration, we showcase the effectiveness of the LAB process by applying it to integrate a multichannel 1x1mm III/v chip with a silicon photonic integrated circuit. The application of highly localized heat during the LAB process rapidly elevated the temperature of the photonic circuit above the pre-deposited solder layers' melting point. This, in turn, led to successful bond formation with impedance in 0.01-Ω range, accompanied by negligible thermal-induced stress to the bonded surfaces and minimal warpage. These results not only validate the efficiency of the LAB process but also underscore its potential to push the boundaries of photonic integration. Particularly noteworthy is the rapid and energy-effective LAB process, featuring bottom illumination/irradiation and simultaneous through-silicon imaging. Thus, it facilitates bonding and active waveguide alignment — an essential aspect in achieving effective integration in the field of photonics. The obtained results contribute to advancing ou

关键词： Surface impedance Rapid thermal processing Surface waves Process control Silicon photonics Bonding Surface treatment

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Laser-Integrated Entirely On-Chip Turnkey Quantum photonic Sources 16

Laser-Integrated Entirely On-Chip Turnkey Quantum Photonic S...

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16th International conference on COMmunication Systems and NETworkS, COMSNETS 2024

作者： Haldar, Raktim Mahmudlu, Hatam Johanning, Robert van Rees, Albert Kashi, Anahita Khodadad Epping, Jörn P. Boller, Klaus-J. Kues, Michael Institute of Photonics Leibniz University Hannover Nienburger Straße 17 Hannover30167 Germany Leibniz University Hannover Hannover Centre for Optical Technologies Nienburger Straße 17 Hannover30167 Germany Leibniz University Hannover Cluster of Excellence PhoenixD Hannover Germany University of Twente PO Box 217 Enschede7500 AL Netherlands QuiX Quantum Enschede7521 AN Netherlands Lionix Intl. Enschede7521 AN Netherlands

ISBN: (纸本)9798350383119

We demonstrate an electrically-pumped laser-integrated quantum light source of entangled photons. The hybrid InP-Si3N4 source emits frequency-bin entangled two- and high-dimensional quantum photonic states in the telecommunication C-band. This source is fully integrated, compact, and field-deployable, bringing the required scalability and stability to the quantum photonic sources for quantum information processing. © 2024 IEEE.

关键词： entangled photon pairs hybrid integration quantum light sources qubits qudits

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Spectral compression of biphotons using time-varying cavities for quantum networking

Spectral compression of biphotons using time-varying cavitie...

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CLEO: Science and Innovations, S and I 2022

作者： Myilswamy, Karthik v. Weiner, Andrew M. School of Electrical and Computer Engineering Purdue Quantum Science and Engineering Institute Purdue University West LafayetteIN47907 United States

ISBN: (数字)9781957171050

ISBN: (纸本)9781557528209

We propose and analyze the use of linear, time-variant cavities for spectral compression of broadband frequency correlated photon pairs, with potential applications in quantum networking. Our time-varying cavity relies on rapid electro-optic switching of input coupling to the cavity. © Optica Publishing Group 2022, © 2022 The Author(s)

关键词： Frequency combs Phase modulation photons Quantum information processing Quantum memories Quantum networks

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High contrast and high resolution sensing and correction of atmospheric turbulence without WFSs and DMs using a digital signal modulated satellite beacon and integrated photonics devices 8

High contrast and high resolution sensing and correction of ...

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conference on Adaptive Optics Systems vIII Part of SPIE Astronomical Telescopes and Instrumentation conference

作者： Herriota, Glen Carlson, Brent Gunaratne, Thushara Cheriton, Ross Janz, Siegfried Marois, Christian veran, Jean-Pierre NRC Herzberg Astron & Astrophys 5071 W Saanich Rd Victoria BC V9E 2E7 Canada NRC Herzberg Astron & Astrophys 717 White Lake Rd Kaleden BC VOH 1K0 Canada NRC Adv Elect & Photon 1200 Montreal Rd Ottawa ON K1A OR6 Canada

ISBN: (纸本)9781510653528;9781510653511

For high contrast imaging, atmospheric turbulence may be sensed and corrected at very high band-width without Wavefront Sensors (WFS) or deformable mirrors using phase correcting integrated photonics devices and advanced signal processing. The overall system employs radio astronomy techniques developed for clock distribution, to sense and correct phase, and radio interferometry procedures to produce high resolution images. One of the tallest poles in high-contrast AO is the frame rate. Our simulation models estimate correction band-width can be 1-2 orders of magnitude faster than current high contrast Adaptive Optics (AO). The method employs a satellite loitering near a science object to send a coded reference laser to the telescope. We have designed and measured a 32 channel astrophotonics phase sensing and correcting device, which is low-cost and compact due to its telecommunications heritage. We are developing a prototype AO system to test the concept, first on a bench and then using a telescope pointed at sources on a tower. This paper also describes how the scheme may be extended to arrays of optical telescopes to give unprecedented micro-arcsecond resolution in the near infrared to obtain image and spectral data cubes of extrasolar planets. The method is also useful for satellite communications, and we have applied for a patent for both astronomy and communications.

关键词： High Contrast Aperture Synthesis Astrophotonics Phase Correction Satellite Beacon Digital Signal Modulation Long Baseline Optical Interferometry

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High-voltage Driver Circuits for Electro-Optical RF Modulators

High-Voltage Driver Circuits for Electro-Optical RF Modulato...

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International conference on Electromagnetics in Advanced Applications (ICEAA)

作者： Robert Neumannn Uwe Stehr Matthias A. Hein RF and Microwave Research Group Technische Universität Ilmenau Institute of Micro- and Nanotechnologies MacroNano® Ilmenau Germany

ISBN: (数字)9798350360974

ISBN: (纸本)9798350360981

Pockels cells are used in a broad range of optical signal processing applications, including quantum computing, because of their capability to modify the phase or polarity of a photon stream by application of an electrical field. As the underlaying electro-optical Pockels effect is weak, a high electric field strength, to be provided by a RF control voltage of 500 v, is required for the modulation of the optical signal. To maximize the processing speed, the high voltage pulses must be applied with a repetition rate of 500 kHz. The trend towards higher data rates places greater demands on the Pockels cell drivers, which have to generate a stable high voltage and produce high-voltage pulses by fast switching. This paper focuses on the design of a suitable voltage driver circuit, using a non-conventional cascaded voltage-doubler circuit. It is proven by simulation and measurements that the use of the Karthaus-Fischer cascade is advantageous for providing the required high output currents.

关键词： Radio frequency Quantum computing Switching loss High-voltage techniques Electro-optic modulators Optical signal processing voltage multipliers voltage control Driver circuits photonics

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Acousto-optic modulation based on an AlScN microring resonator for microwave-to-optical conversion

arXiv

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arXiv 2024年

作者： Bian, Kewei Liu, Yushuai Rong, Weilin Dong, Yuan Zhong, Qize Qiu, Yang Zhao, Xingyan Wu, Tao Zheng, Shaonan Hu, Ting School of Microelectronics Shanghai University Shanghai201800 China School of Information Science and Technology ShanghaiTech University Shanghai201210 China Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai200050 China University of Chinese Academy of Sciences Beijing100049 China

Acoustic-optic (AO) modulation is critical for microwave and optical signal processing, computing and networking. Challenges remain to integrate AO devices on-chip using fabrication process compatible with complementary metal-oxide-semiconductor (CMOS) technology. This work presents the demonstration of an AO modulator exploiting a microring resonator (MRR) based on thin-film aluminum scandium nitride (AlScN) photonic platform. Leveraging the high piezoelectric properties of AlScN, an MRR is employed with interdigital transducer (IDT) inside to couple microwave signals into acoustic resonant modes, enabling efficient by-directional optical modulation in the MRR. The fabricated MRR exhibits an optical loaded quality factor (Q) of 1.8×104 at the optical L-band for the TE00 mode. A low effective half-wave voltage (vπ) of 1.21 v is achieved, corresponding to a vπL of 0.0242 v cm, along with an optomechanical single-photon coupling strength g0 of 0.43 kHz between the 2.11 GHz acoustic mode and the TE00 optical mode. The device shows potential for applications in microwave photonics. Copyright © 2024, The Authors. All rights reserved.

关键词： MOS devices

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A Programmable Qudit-based Quantum Processor

A Programmable Qudit-based Quantum Processor

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conference on Lasers and Electro-Optics (CLEO)

作者： Yulin Chi Jieshan Huang Zhanchuan Zhang Jun Mao Zinan Zhou Xiaojiong Chen Chonghao Zhai Jueming Bao Tianxiang Dai Huihong Yuan Ming Zhang Daoxin Dai Bo Tang Yan Yang Yunhong Ding Leif K. Oxenløwe Mark G. Thompson Jeremy L. O’Brien Yan Li Qihuang Gong Jianwei Wang State Key Laboratory for Mesoscopic Physics School of Physics Peking University Beijing China Beijing Academy of Quantum Information Sciences Beijing China State Key Laboratory for Modern Optical Instrumentation College of Optical Science and Engineering Ningbo Research Institute International Research Center for Advanced Photonics Zhejiang University Hangzhou China Institute of Microelectronics Chinese Academy of Sciences Beijing China Department of Photonics Engineering Technical University of Denmark Lyngby Denmark Center for Silicon Photonics for Optical Communication (SPOC) Technical University of Denmark Lyngby Denmark H. H. Wills Physics Laboratory and Department of Electrical and Electronic Engineering Quantum Engineering Technology Labs University of Bristol Bristol United Kingdom Department of Physics The University of Western Australia Perth Australia Frontiers Science Center for Nano-Optoelectronics & Collaborative Innovation Center of Quantum Matter Peking University Beijing China Collaborative Innovation Center of Extreme Optics Shanxi University Taiyuan China Peking University Yangtze Delta Institute of Optoelectronics Nantong China

We designed, fabricated, and characterized a programmable qudit-based quantum processor on silicon. We implemented several quantum algorithms with qudits, showing the logarithmic speed-up, photon detection rate enhanc...

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Exploring colloidal stability and migration dynamics through integrated photonic into aqueous black carbon dispersion 26

Exploring colloidal stability and migration dynamics through...

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Remote Sensing for Agriculture, Ecosystems, and Hydrology XXvI conference 2024

作者： Gastebois, J. Szymczyk, A. Paboeuf, G. Scholkopf, F. vié, v. Saint-Jalmes, A. Lhermite, H. Cormerais, H. Gauffre, F. Bêche, B. Univ Rennes CNRS IETR - UMR 6164 RennesF-35000 France Univ Rennes CNRS ISCR - UMR 6226 RennesF-35000 France Univ Rennes CNRS IPR - UMR 6251 RennesF-35000 France Univ Rennes UAR 2025 ScanMAT RennesF-35000 France Centrale/Supelec Campus de Rennes Cesson-SévignéF-35510 France

ISBN: (纸本)9781510680906

This study investigates the migration and stability of colloidal suspensions through quasi-surfacic resonant analyses. The stability of colloidal suspensions is crucial in various industries such as food production, pharmaceutical formulations, and petroleum fields, where ensuring product quality and longevity is essential. The investigation presented here focuses on black carbon nano-powder dispersed in aqueous solutions, both with and without the incorporation of sodium dodecyl sulfate (SDS) surfactant. These solutions result in opaque and densely darkened mixtures, presenting challenges for conventional analytical techniques. To address this challenge, sensors based on integrated photonics are developed. These sensors consist of organic Uv210 Micro-Resonators (MRs) shaped and fabricated via photolithography onto oxidized silicon substrates. The photonic chip is then integrated into a test platform where detection and signal processing are performed using a spectrometer and dedicated MATLAB codes to monitor optical measurements in real-time, crucial for investigate the dynamics of colloidal stability. Meticulous experimentations enable exploring the influence of black carbon nano-powder size and concentration on colloidal dispersion stability. The findings highlight the impact of the black carbon concentration on its migration and emphasize the anionic surfactant’s effect on increasing stability by enhancing the repulsive forces between particles. These conclusions are corroborated with rheological plus zeta potential measurements to provide insights into determining colloidal dispersion stability and migration through optical resonant analysis. © 2024 SPIE.

关键词： Anionic surfactants

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Simulation and fabrication of slow light suspended air-bridge AlGaAs photonic crystal waveguide 26

Simulation and fabrication of slow light suspended air-bridg...

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conference on Integrated Optics - Devices, Materials, and Technologies XXvI at SPIE OPTO conference

作者： vyas, Kaustubh Cheriton, Ross Liu, David Ahmed, Hassan Schulz, Sebastian Dolgaleva, Ksenia Univ Ottawa Sch Elect Engn & Comp Sci Ottawa ON Canada Natl Res Council Canada Adv Elect & Photon Res Ctr Ottawa ON Canada Univ St Andrews Sch Phys & Astron St Andrews Fife Scotland

ISBN: (纸本)9781510648807;9781510648791

photonic crystals can exhibit interesting optical properties such as peculiar dispersion, small group velocity, negative refraction and diffraction. Group velocity engineering in a certain wavelength range allows for enhanced nonlinear optical interactions, while higher light confinement achievable in photonic crystal waveguides leads to a reduced footprint for integrated photonic components. Silicon-based photonic crystals are relatively well studied,(1-3) however, they are not suitable for a monolithic integration with active devices. III-v semiconductors exhibit light-emitting properties, large Kerr nonlinearity and negligible two-photon absorption in the telecommunication regime, and therefore are more suitable for frequency conversion, all-optical signal processing, laser absorption spectroscopy and microcomb generation for correlation spectroscopy applications. In this work, we theoretically investigate the design and fabrication of photonic crystal waveguides based on an air-bridge Al0.18Ga0.82 slab for frequency conversion using FWM. We demonstrate a suspended Al0.18Ga0.82 layer fabricated by HF-controlled wet etching of an AlGaAs heterostructure, which selectively etched top and bottom claddings of higher aluminum concentration AlGaAs leaving behind the core suspended in air. We show, by simulations, that the group-index values of 25 over a bandwidth of 22 nm around 1590 nm in a dispersion-engineered W1 photonic crystal defect waveguide are possible enabling this device to operate in the slow-light regime where we also demonstrate a phase mismatch of nearly zero. Future designs can be optimized for longer wavelengths in the mid-infrared (MIR) as a promising platform to realize compact, slow-light enhanced integrated photonic components for sensing and wavelength conversion, thanks to the low propagation loss of AlGaAs in the MIR regime.

关键词： photonic Crystal four-wave mixing nonlinear optics integrated photonics

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