- 标题
- 摘要
- 关键词
- 实验方案
- 产品
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[IEEE 2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall) - Xiamen, China (2019.12.17-2019.12.20)] 2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall) - Tunable 360 Degrees Phase Shifter Based on Spoof Surface Plasmon Polaritons Waveguide
摘要： The increasing number of computational servers in data centers is imposing tighter constraints on the networking infrastructure. Scalable power efficient optical interconnect network becomes necessary to leverage the bandwidth capacity of current electronic switches or opto-electronic components. Hence, novel optical interconnect technology can enhance the network capacity by harnessing the feasibility of simultaneous processing of optical signal in the wavelength and time domains. In this paper, we present a four channel optical passive wavelength-striped mapping (PWSM) device, which passively time compresses/expands serial packets through optical wavelength multiplexing/demultiplexing. The PWSM device, which has a 1 × 4 channel optical wavelength demultiplexer with integrated optical delay lines, is designed in a low-loss Si3N4 (propagation loss ～3.1 dB/m) waveguide platform. The PWSM device multiplexes/demultiplexes four WDM channels and offsets in time the adjacent channels to optically serialize/de-serialize data packets. In this demonstration, a 64 ns long data packet is formed at the output of the device by combining four 16 ns data segments of the packet in time domain. Incremental optical insertion loss between adjacent channels is ～9.7 dB due to the integrated passive optical delay waveguides. The data rate of the four segmented packets and the combined packet is 25 Gb/sec. We have measured a bit error rate performance below 1 ×10?9 for the 64 ns serial data packet regenerated by the PWSM device for a received optical power of –6.7 dBm.
关键词： wavelength filtering devices,Photonic integrated circuits,silica and silicon nitride photonics
更新于2025-09-19 17:13:59
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[IEEE 2019 Photonics North (PN) - Quebec City, QC, Canada (2019.5.21-2019.5.23)] 2019 Photonics North (PN) - Study of nonlinear optical refractive index in thin films formed by bloom gelatin and organic materials : (Indigo carmine dye and phenol red Ph indicator)
摘要： The presence of phase noise (PN) severely deteriorates the sensitivity and range of frequency-modulated continuous wave radar systems. Thus, characterization and continuous monitoring of the PN is indispensable, and its estimation is often employed directly on chip. Although many contributions investigate methods for PN estimation, almost all of them consider a continuous-wave (CW) input signal. Differently, in this paper, we aim to estimate the PN from a linear frequency modulated continuous wave (FMCW) signal. For that, we propose two methods utilizing a so-called artificial on-chip target and further digital signal processing. These methods are evaluated in real-time and are the first-known solutions to determine PN estimates during the operation of an FMCW radar transceiver. We prove our methods with both simulation and measurement results from a hardware prototype. Further, we present techniques to efficiently realize the concepts in digital hardware. Finally, we compare and trade off the proposed methods against computational complexity and performance. The novel techniques may be applied to arbitrary input frequencies and bandwidths, and do not require a reference-clock input.
关键词： Delay lines,millimeter-wave radar,phase noise (PN),(FMCW),estimation,monolithic microwave integrated circuits,frequency-modulated continuous wave
更新于2025-09-19 17:13:59
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[IEEE 2019 IEEE Conference on Power Electronics and Renewable Energy (CPERE) - Aswan City, Egypt (2019.10.23-2019.10.25)] 2019 IEEE Conference on Power Electronics and Renewable Energy (CPERE) - Analysis, Design and Simulation of a DC Photovoltaic Microgrid with Electric Vehicle Charging Capability
摘要： Optical fibre transmission has enabled greatly increased transmission rates with 10 Gb/s common in local area networks. End users find wireless access highly convenient for mobile communication. However, limited spectrum availability at microwave frequencies results in per-user transmission rates limited to much lower values, e.g., 500 Mb/s for 5-GHz band IEEE 802.11ac. Extending the high data-rate capacity of optical fiber transmission to wireless devices requires greatly increased carrier frequencies. This paper will describe how photonic techniques can enable ultrahigh capacity wireless data distribution and transmission using signals at millimeter-wave and TeraHertz (THz) frequencies.
关键词： optical heterodyne,optical mixing,optical phase lock loops,millimeter (mm)-wave generation,microwave photonics,photonic integrated circuits,Broadband communication,semiconductor lasers
更新于2025-09-19 17:13:59
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[IEEE 2019 Photonics North (PN) - Quebec City, QC, Canada (2019.5.21-2019.5.23)] 2019 Photonics North (PN) - Progress in Passively Mode-Locked 2-Micron Tm and Ho Bulk Solid-State Lasers
摘要： The increasing number of computational servers in data centers is imposing tighter constraints on the networking infrastructure. Scalable power efficient optical interconnect network becomes necessary to leverage the bandwidth capacity of current electronic switches or opto-electronic components. Hence, novel optical interconnect technology can enhance the network capacity by harnessing the feasibility of simultaneous processing of optical signal in the wavelength and time domains. In this paper, we present a four channel optical passive wavelength-striped mapping (PWSM) device, which passively time compresses/expands serial packets through optical wavelength multiplexing/demultiplexing. The PWSM device, which has a 1 × 4 channel optical wavelength demultiplexer with integrated optical delay lines, is designed in a low-loss Si3N4 (propagation loss ～3.1 dB/m) waveguide platform. The PWSM device multiplexes/demultiplexes four WDM channels and offsets in time the adjacent channels to optically serialize/deserialize data packets. In this demonstration, a 64 ns long data packet is formed at the output of the device by combining four 16 ns data segments of the packet in time domain. Incremental optical insertion loss between adjacent channels is ～9.7 dB due to the integrated passive optical delay waveguides. The data rate of the four segmented packets and the combined packet is 25 Gb/sec. We have measured a bit error rate performance below 1 ×10?9 for the 64 ns serial data packet regenerated by the PWSM device for a received optical power of –6.7 dBm.
关键词： silica and silicon nitride photonics,wavelength filtering devices,Photonic integrated circuits
更新于2025-09-19 17:13:59
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[IEEE 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC) - Fukuoka, Japan (2019.7.7-2019.7.11)] 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC) - Lossless Scalable Optical Switch Design in a SiP/InP Hybrid Platform
摘要： Lossless and distortion-free experimental operation of an 8×8 SiP/InP hybrid optical switch is demonstrated. The design employs an 8-channel InP gain block added to a SiP switch to compensate for its high insertion loss.
关键词： photonic integrated circuits,optical switches,indium phosphide,silicon photonics,hybrid integrated circuits,Optical interconnects
更新于2025-09-16 10:30:52
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Nanocomposites for Photonic and Electronic Applications || Green photonics integrated circuits based on organica??inorganic hybrids
摘要： Within the last decade, most applications in data communication and storage, as well as sensing, have become highly integrated, leading to an incorporation and adaption of optical components toward high integration levels [1]. For this purpose, photonic integrated circuits (PICs) have attracted a large interest as they contain several optical components in a single chip (all-in-one package), reducing the size, weight, power consumption, and the cost of optical-to-electrical-to-optical conversions [2]. The interest in PICs is also justified by other advantages, such as minimum number of optical fiber connections, high sensitivity, and electromagnetic immunity [3].
关键词： organic-inorganic hybrids,photonic integrated circuits (PICs),Green photonics,optical components,integrated circuits
更新于2025-09-16 10:30:52
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[IEEE 2019 International Conference on Optical MEMS and Nanophotonics (OMN) - Daejeon, Korea (South) (2019.7.28-2019.8.1)] 2019 International Conference on Optical MEMS and Nanophotonics (OMN) - Low-Loss and Broadband Silicon Photonic Y- Junction Using Tapered Rib Waveguides
摘要： We report on low loss and broad bandwidth X-junctions based on adiabatically tapered rib waveguide silicon photonic devices. The fabricated devices exhibit a compact footprint of 20 μm (taper length), a broad bandwidth over 24 nm, and a low excess loss of 0.28 dB. The demonstrated device has a compact footprint of 20 μm (taper length), a broad bandwidth over 24 nm, and a low excess loss of 0.28 dB.
关键词： Advanced passive devices,adiabatic tapered rib waveguide,3 dB Optical power splitter,Photonic integrated circuits
更新于2025-09-16 10:30:52
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Ion-Induced Electrical Isolation in GaN-Based Platform for Applications in Integrated Photonics
摘要： GaN based Photonic Integrated Circuits (PICs) have now become a global contender for their wide range of applications owing their physical characteristics. The GaN material system acts as a promising platform; compatible with silicon and sapphire substrates. Both the carrier transport and carrier removal techniques are vital to develop the efficient platform for the integration of photonic circuits. We demonstrate the carrier removal mechanism in silicon (Si) doped GaN (0001) epitaxially grown on c-plane sapphire wafer using ion engineering of the devices. Ion-engineered regions within the active layers of the device are modelled, fabricated and characterized to assess the isolation created. Helium and Carbon ions with pre-designed doses and energies are used to irradiate the device structures. We have modelled and fabricated ion-engineered regions within the active layers and studied the carrier transport properties on said regions to isolate that particular part with either of active photonic components placed at the common platform. After ion irradiation, detailed analysis in terms of electric field dependent current characteristics, sheet resistance, carrier mobilities, activation energies, dark and photo currents under zero (ground) and multiple biases are examined to see the extent of charge leakage and to map the charge behavior under nominal operation. Device characteristics under wide regime of annealing temperatures ranging from 300oC to 1000oC are mapped to evaluate the thermal stability of implant driven isolated regions. Activation energies of implanted and parent regions has also been studied. The dark and photon driven electric currents at ground and under biased have been measured to investigate the photo-induced transport phenomenon.
关键词： Photonic Integrated Circuits,Electrical Isolation,Ion Implantation,Crosstalk
更新于2025-09-16 10:30:52
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Thick film hydrogen silsesquioxane planarization for passive component technology associated with electronic-photonic integrated circuits
摘要： Migrating electronic-photonic integrated circuits (EPICs) to higher data rates requires efficient electrical interfaces. This can be achieved with microwave technologies such as coplanar and microstrip transmission lines, but these can be difficult to apply in EPICs because of the complexity of the fabrication processes associated with monolithic integration. In this work, the authors report a novel method for planarizing a thick, low-κ film based on multiple-spins of layers of hydrogen silsesquioxane without a need for thermal curing. Films of total thicknesses of 5 and 6 μm were planarized on a heavily doped InP substrate and used to realize coplanar waveguide transmission lines. The film shape is defined as an integral part of the fabrication process without any need for etching. A coplanar waveguide with a characteristic impedance of between 48 and 56 Ω over the frequency range 10 MHz–67 GHz was demonstrated.
关键词： planarization,hydrogen silsesquioxane,low-κ film,electronic-photonic integrated circuits,coplanar waveguide
更新于2025-09-16 10:30:52
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Fully Reconfigurable Waveguide Bragg Gratings for Programmable Photonic Signal Processing
摘要： Fiber Bragg gratings have been invented for over three decades and have been intensively employed in optical communications systems and sensor systems. The key limitation of a fiber Bragg grating is that once fabricated, it is hard to be tuned or with very limited tunability via thermal or mechanical tuning. Recently, great efforts have been directed into the study of realizing Bragg gratings on silicon-on-insulator (SOI) platform. The key advantage of Bragg gratings implemented based on SOI is that the gratings can be fast and electrically reconfigured with the use of free-carrier plasma dispersion effect in silicon, which can be employed for fast programmable photonic signal processing. In this paper, Bragg gratings based on SOI that are electrically programmable will be reviewed, and their use for advanced programmable optical and microwave signal processing will be discussed.
关键词： photonic integrated circuits,silicon photonics,Bragg gratings,optical signal processing,Microwave photonics
更新于2025-09-16 10:30:52